Borg-Warner makes the T5 transmission? There are lots of bellhousings and tailhousings available for it, and more than a few adapters, as well. The T5 has a bad rep in some circles, but IMHO, if you get a well-built World Class (WC) T5, you've got a nice-shifting 5-speed that will stand up well to reasonable use.

Google a bit on "World Class T5 Borg Warner" -- there's lots of good info out there on this tranny!

Randii