Interesting concept you have going there. I'm not sure how much the tranny weigh's (it's jumping around in my head, if I remember I'll post it later). I remember that the engine weighs 337 lbs (N/A w/fluids) and 377 (TII w/fluids). I like the concept you have going there, I have a friend who's also working on a Corrola, but he's planning on putting in the twin-cam from the MR2 (chassis SW20 I think the engine is the 2JZE but I can't remember right now). Good luck...oh yea if you need anything else go here
http://www.rx7club.com
(we're down for the evening though...maintenence)