Well, you would want to max your General Quality, of course. To do that, first thing you will want is a Familiar. Assuming the Familiar can be taught, and read books, and "Price is no object", a +15 to General Quality is quite easy. Then, Lab Focuses. You can have as many Greater Lab Foci in your lab as you can fit. So, a Sauna, a garden, maybe a bee hive, etc. Things that are "good for health" will give a +3 to Longevity Rituals, and other things will give a +3 to Creo, which, of course, will add to Longevity Rituals. Should be easy to come up with a list of 10 or more, and that's at least a +30 to Longevity Rituals. You will want to maximize Safety, which is easy to do as a group job. Extensive stores, Well Insulated, etc.
Then, to protect your "Investment", you will want to maximize the Health score for the lab. I have seen +9 in canon, and there should be some items to increase that as well. Maybe a +15 to the Health Score?
That's all the "canon" stuff. Now, in game, there is more you might be able to do. Can you find a Magic Bee Hive for your Greater Lab Focus? Well, that comes with a Greater Guardian (Bee King) and a Greater Horde (the bees), yes? Both of which add to Creo. There are a couple of lesser magic traditions that deal with aging, one or two of them would make fine lab assistants and perhaps Greater Lab Foci, yes?
Last, Magic Items for the Lab. Anything that adds to Creo, Corpus or Longevity Rituals will be a big help. I would try to get ones that add to Longevity Rituals, you get +1 for 10, as opposed to +1 for 20 (Going off of memory). Should be able to get between +10 to +20 total, again, going by "Price is pretty much no object".
So, using the Lab rules, a +60 to Longevity Rituals should be pretty easy, and a +80 should be possible.