Doug Nash did make a race version of the 5spd, no syncro's, not to be street driven, you'll wreck the tranny cuz it doesn't like to be down shifted while rolling.
You'll need to get another bell housing cuz the bolt pattern is not the same as an 833, or T-10, or top loader. 3 holes will line up, bottom left falls into space. For mine, I filled the area by welding in a chunk of aluminum, flycutting it on a milling machine and transfer punched the hole.
To put it into the car, you need to do serious tunnel surgery and make a new cross member; the body of the tranny case is too wide to fit.
Good luck!