Well, so much for almonds, apricots, asparagus, chestnuts (of which I am proud to be), eggplants, Granny Smith apples, macaroni and cheese, oranges, and peaches. 
Darkwing's suggestions:
Core covenant:(335 points, 41 flawed or illusory in some way)
Specialists:
Illuminator, Bookbinder - both level 6 =12 pts
Medicine 5 (+chirurgy 3) leech specialist - there to apply regimens (from A&A) for covenfolk, and to help with non magical healing = 5 pts
(17 total)
Summae
The Book of Change L15 Q15 on Muto = 30 points
Making Your Point by Lucius of Flambeau, L6 Q15 on penetration = 33 points
Elegant Magic by Chretien of Jerbiton, L6 Q15 on finesse = 33 points
Fair Folk of the Shores and Moors by Jacinta of Merinita, L4 Q 10 on faerie lore = 22 points
A Bestiary by the monks of Micklegate in York, L6 Q15 on magic lore (beasts), a beautifully illuminated book = 33 points
A guide to deportment by A Lady, L3 Q10 on Etiquette = 19pts
The etiquette and finesse books both have "You can keep this one!" written on the front in Duncan's handwriting.
(170 points total)
Vis Sources
A whirlpool that appears in Loch Ness and tries to suck things into the depths - 4 pawns Perdo Vis
The salmon of truth - one salmon in one stream flowing into the Loch grants wisdom, or more usually 4 pawns mentem to a magus.
The site of an ancient battlefield where many died, ending a feud - 4 pawns corpus vis
A mighty granite rockface, where coloured veins appear each winter after weathering - 4 pawns terram vis
An incredibly fertile wild ram appears and impregnates ewes - the first ewe impregnated will produce 4 pawns of animal vis in her fleece.
Driftwood appearing on one particular beach on the loch contains 4 pawns herbam vis after the spring equinox.
A peat-filled bog that traps unwary travellers and emits vile stenches - the first corpse (human or large animal) dug out after the spring that contains 4 perdo vis.
(7 * 20 = 140 pts )
this leaves 8 points left over for vis or money stocks. I'm really not sure how to allocate them. I suggest for flawed resources, 1 point of money stocks isn't there, and one vis source isn't.
Personal 75 pts
The Ways of Others by Basil, follower of Pralix - level 6 quality 15 ability summa on Comprehend Magic, 33 pts
Our campaign against Damhain-Allaidh - level 4 quality 10 ability summa on Infernal Lore (British infernalists) , compiled from the notes of early ex misc magi. 22 pts.
Organising the Miscellanea for the common good, attributed to Pralix but probably another magus, level 4 quality 8 ability summa on Leadership. 20 pts.
Still need to do personal but here is 291 for general:
On the transfer of knowledge within the Order (48 Build Points)
This book was created by a former Primus of House Bonisagus as standard tool for training their apprentices, other mages and those coming into the order on the methods to create a well written Summae suitable for presentation to the house for addition to the yearly collections.
Summae on Latin Level 6/Quality 10, Tractus on Profession Scribe 10, Tractus on Profession: Illuminator 10
Vis Sources: 40 points
Mentem: 4 Pawns, Imagonem 4 pawns, Every year on samhain, one of the ancient stones in a nearby graveyard summon the spirit of a Daemon to it to speak for the dead that died during the year. If the mages can speak to it about the good and bad and render fair judgements on a number of ghosts that it brings before them, it dissolves and leaves behind a gift of vis. If they fail to judge the dead correctly for their deeds then the ghosts of the dead are released to attack.
Vis Reserve (40 points)
20 Pawns Creo, 20 Pawns Muto, 40 pawns Vim, 10 Pawn Corpus, 10 pawns auram, 10 pawns aquam, 30 pawns Mentem, 30 pawns of Imagonem, 30 terram
Lab Texts: 58 points
Lab Text: Wizard’s Leap (ReCo 15)
Lab Text: True Sight of Air (InAu 15)
Lab Text: True Sight of Water (in Aq 15) (see clearly through water like it was air)
Lab Text: The Bountiful Harvest (CrHe 35)
Lab Text: Pit of Gaping Earth (PeTe 15)
Lab Text: Shell of False Determination (CrVi 15)
Lab Text: Piercing the Faerie Veil (InVi 20)
Lab Text: Piercing the Mystic Veil (InVi 20)
Lab Text: Piercing the Infernal Veil (InVi 20)
Lab Text: Masking the Odor of Magic (PeVi 20)
Lab Text: Unraveling the form of Corpus(PeVi 10)
Lab Text: Unraveling the form of Animal (PeVi 10)
Lab Text: Unraveling the form of Aquam (PeVi 10)
Lab Text: Unraveling the form of Terram (PeVi 10)
Lab Text: Unraveling the form of Imagonem (PeVi 10)
Lab Text: Unraveling the form of Mentem (PeVi 10)
Lab Text: Unraveling the form of Herbam (PeVi 10)
Lab Text: Unraveling the form of Auram (PeVi 10)
Tractatus (79)
On the exploration of the Human Mind (Mentem, quality 10)
The backs of whales (Animal 11)
The Bones of the High King (Area Lore Ireland 10)
Conduct of a Magus at Tribunal (Code Of Hermes 10, Etiquette 10)
A history of the Loch Legean Tribunal and its members (Org Lore: Order of Hermes 10)
On Creation of the heated springs (Ignem, quality 8)
On the Mastery of cooperative casting (Tractus on Mastery for Wizard Communion (level 20), Quality 10
Summae (26 pts)
The Hermetic Code as judged in the first two tribunals (Code of Hermes: Level 4, Quality 12)
Any reason in particular you feel we need two summae on Latin and two lab texts for The Bountiful Harvest?
The first part, she was reposting what she already had submitted.
But, yeah, we already have a copy of The Bountiful Feast, if you want to spend those seven points on something else.
And you still get another 44 points to spend, from redistributing JeanMichelle's points. So that would be 51 more points to go.
I thought qcipher had bought a Latin summa? Ah well.
No, it wasn't qcipher's he's bringing a teacher with Latin 5, though. Although, ladyphoenix had mentioned it before in a post.
58 more points and 75 personal?
Oy vey
True Sight of Water is basically a Sun duration version of Clear Sight of the Naiad, right? That could come in handy here; Loch Ness is notoriously murky (at most, three feet of vision underwater. And wicked cold.)
If I may suggest - no one's thrown in an anti-cold spell, yet. Since gathering the eggs of the Loch Ness Monster is a covenant vis source, that might be handy. Especially considering that Loch Ness is about 42° F/5° C year-round.
Yeah, It is a sun duration clear sight of the Naiad. That is the name that my offline campaign has it on for my mystic blood shark Maga.
Sure, I can spend 1 point on teh folowing:
Lab Test: Warmth of the watery traveller
CrIg 5, base 2, touch 1, sun +2)
This spells warms the target and keeps it warm and comfortable as a summer day no matter how cold it gets around them.
I believe we have more hooks than boons, even with a Healthy Feature +3, so that shouldn't be a problem.
Checked Covenants on my way out the door this morning-- I think an unexplored regio is another hook.
We need some Boons 
It's either a hook or a boon. The major boon version presumes that the covenant is within the regio, and that there is limited entry. The minor boon version has multiple entrances that need to be discovered and/or secured.
The major hook version presumes that the regio is unexplored AND creatures come out from time to time to harass the covenant. The minor hook version has multiple entries which cause problems. The covenant isn't necessarily inside the regio for the hook versions. For Bibracte, the minor boon version was choosen, so I've generally gone light on stories that involve it, and mainly have used it to freak out Alexei, or generally aid the covenant otherwise.
It could be that the lab is inside a regio on the island, and no one has bothered to investigate it sufficiently. For example at the mundane level of the regio where the aura is 3, one might see the lab constructed, but a regio boundary is crossed unknowingly, which explains the aura jumping to 6. Perhaps building materials cannot be easily brought over to the island (boats leave things for construction, but the supplies end up disappearing because it wasn't brought through to the regio properly?). Only items carried over via the bridge remain, and it's too difficult to do large scale building that way, especially of stone or heavy wood...
Does it have to be a Magic Regio?
Fyi, the Magic aura from the loch extends to the treeline. Beyond that, it's a Faerie 1 until you leave the woods, in about a mile, mile and a half, when you get to the fields where they pasture the sheep.
A regio that the covenant doesn't inhabit is a Minor Hook, which is what I think you were suggesting.
With the Minor Hook Regio, we're currently sitting at 7 points in Boons and 10 in Hooks (I'm giving you the +3 Limited Aura as a freebie.)
Looking at the Site Boons & Hooks, it looks like:
- Major Boon: Regio has the covenant located within a regio that only natives can navigate - something like the path in Phoenix leading from Bibracte to Phoenix, only more so. A better example might be Cad Gadu, iirc.
- Minor Boon: Regio is like JL said.
- Major Hook: Regio has the regio on (or near, by my fiat) the covenant site, but the covenant isn't within the regio, and you get pesky visitors.
- Minor Hook: Regio has a regio on or near the covenant, but nothing spectacularly obnoxious about it.
- Minor Hook: Regio with Unexpected Entrances has the covenant within a regio, but there are more entrances than the magi are aware of. Hilarity ensues.
As I said above, I think Arya was wanting Option 4 (Minor Hook: Regio), but if we want a regio, either #3 or #4 will work.
Oh...and the Council Chamber building, the Revel Hall, and the Common Lab are all constructed of wood, enchanted with a variant of Thaumaturgical Transformation of Plants to Iron, as are the buildings that are already used for laboratories.
Good thing we have a giant, intelligent flying creature that can carry hundreds of pounds 
Well, the intention is to find a place where we can build labs without a stunted aura, so... Yes, being affiliated with the Magic Realm would be pretty necessary.
Yeah, but I think Falkor might be busy trying to get his groove on with the Niseag.
I like the general idea of a low aura generally being available, with the option of a higher order available on an as needed basis. Additionally, the island, being a common lab presents some interesting challenges of not being a sanctum, etc, which I find possibly interesting.
Not something I find interesting. The bonus from the aura is offset by not being able to customize a lab at all. In the end having a personalized lab in a crappy aura will be better than having a standard lab in a great aura. Also, the double size is a waste-- there's no need for extra equipment because it will never get customized, needs no refinement.
I like having a good reliable lab in the background without having to worry that it's not going to be available when I need it, or that anyone can spy on my research because I'm not in a sanctum, or any other headaches that would arise from trying to parcel out time in one needlessly oversized lab in the only good aura on the covenant grounds.
If no one else is interested in having a regio with a solid aura for our labs, I'd be content with some small regio only accessible by flight, that's just big enough for one lab.
A maga's home is her castle. "Home" being under attack, that's a story I always hate.
Well, I would be against spending a boon on something that is only accessible/beneficial by a limited subset of characters.
It's +3 to the LT, which like you said, you're probably better off customizing the lab to your preferences.