For this entire thread, I was thinking that the WRX engines were transverse. Than last night I realized that they are longitudinal.
http://www.i-club.com/forums/showthread.php?t=4487
Not sure how much of that is dedicated to the AWD system, but the 5sp definately looks fairly narrow, but long.
http://album.hybridz.org/data/500/7338_1.JPG
http://album.hybridz.org/data/500/0943_10mg.jpg
Just looking at the transmission internals, it looks like the bottom right is the output for the FWD, and the bottom left is the RWD bit. All on the same shaft. Besides snaping or de-splining the output shaft, what link links might there be with a RWD converted transmission?
Yes, it has the extra bulk of the AWD component, but it doesn't appear to add too much. If the RX7 transmission takes alot of custom parts to work, a RWD conversion might be a good way to go.