Talk about response! I figured I'd have to wait a couple days. :shock:
Lots to think about, and as the concensus builds I think that I will modify the original post with the solutions to better serve those who follow....
Just off of the cuff, it sounds like 16" wheels would be best for later brake conversions, unless 15" compatible brakes were used (Legacy-style). WRX seats sound good if I figure the airbag problem out and convince my wife to go with it (maybe get beige seat covers? arrrggh).
I have to head out to my Ultimate Frisbee league now, but I'll come back and address everything.
The get-togethers sounds cool, except that I am usually in Carson Valley on Thursday nights starting at 1930. Maybe I can work in something...not that a speed run through CC would be a good thing...
In the meantime, I'd like to thank all for the time in responding, and the offers of help! One more Scotty, eh? (Nice to be popular, for a change, all you Jennifers out there!)