We had an interesting discussion after our last session. The magi want to provide the covenant with several enchantments -- keeping the place warm and dry, having an intruder alarm, and that sort of thing. We do not have access to Hermetic Architecture.
The enchantment rules state that, for a compound object, you can either prepare the sum of all the components, or the single largest component. Given that the covenant is a collection of rooms made of wood or stone, and assuming that the single most costly component is a huge object of soft stone (that is, a room), then it has a cost of 15 pawns. This can be prepared for enchantment by one of our PCs, who has a Magic Theory of 8.
This would prepare the whole covenant for enchantment, allowing R: Personal, T: Structure effects to affect the whole covenant (e.g. warm to the touch), and intruder alarms at R: Touch, T: Individual (e.g. anyone touching the covenant's threshold is interrogated by an InCo spell). It would also include Shape & Material bonuses for halls, doors, floors, rooms, dead wood, etc.
Can anyone see anything wrong with this according to the rules? I only want opinions on the enchantment - I'd rather that consequences resulting from this sort of enchantment are not discussed (some of my players read this list, and I already have some schemes and plots which result from this. I don't want my players being prompted into safeguarding against these before I employ them!). I just want to know whether it is correct, since it seems like I'm missing something (although I'm more than willing to allow it, legal or not).
Thanks for any input,