Not getting the replies id hoped in Tech....HELP?

I was thinking of going to a 4-speed in the Cuda, My question is what kind of tranny can I put in there?

Will the ones from truck work?
What do I need to look for?
Do I need a A-Body only trans?
Will one from a F Body work?

I need help here guys, Im not 100% sure I will go with a 4-speed but the idea is pretty cool.
Any help on this?

Thanks
Billy