Doug, I think you can use any 5 speed thru 83, you need the trans, mount, pedal, new holes in your firewall and all the linkage, and backup light stuff, there's an article about where the shifter comes out on this site, but I believe if you use a Z trans as opposed to a 510 it will line right up. I think I have all that stuff at my wrecking yard by the way.
I work at a wrecking yard in Portland, have, can get lots of Z car stuff including whole cars, have 72 240 would sell cheap. I'm looking for people in Oregon, Washington for cruising, tech rallies etc.