I found the build book online for you:
http://www.gm.com/company/gmtunersou...build_book.htm
What I'm going to do for body work myself is to just use a donor. I want to make my car look bone stock, preferably something that's really slow like a Civic or something. I want to make a sleeper.
On the other hand, I think a good donor body would be a 300zx simply because I love the styling of the front end. As far as engine donors, I think I like the idea of a longitudinal mid-engine, like if you use a Miata or RX-7 drivetrain with a shorter driveshaft or something. I don't know yet.
If I'm creative enough, nothing says I can't mix and match my favorite front end with some other back end, but it'll be hard to not make this look obvious or ghettofied.