I agree that we should coordinate on how to spend build points. We won't have that much available, so overlap would be bad. And since we can assume that the characters will have written to each other, at least, then some coordination would have been possible.
So far, the following have been declared. If I am missing anything, or if things change, let me know and I'll post an updated list.
For my part, Batholomeus will probably have gathered a number of skilled workers in the last period of his advancement, mostly outcasts and people hitting a rough spot in life. I will also go for a summa (since we can only get one for each magus) and a few tractatus, although the subjects are still undecided.
Am I correct in assuming that grogs and non-specialists workers do not cost build points? Do we want to build companions as well as magi? That might help fill some of the more important mundane roles in the covenant.