From what I remember, basement space is finished out somewhere around $65 sq ft which is pretty cheap for "livable" space. As Phil mentioned, its very easy to run wiring but I really like it when the tornando sirens start going off.
At a minimum, I would do a 1/4 basement on a crawl space for rest of house. Thats a big shop but I guarantee you it will be full of stuff in 8 months and basement space can be conditioned easily.
Crawl space gives you lots of remodeling options down the road as well.