Do I wait for the 5 speed?

I have a friend with one in a 70 Superbird clone. He drives it a lot. He had an issue with "something" in front of the transmission once.....throwout bearing or pilot bushing.....I don't really remember. But it was not the transmission. Once he got that fixed it was right back to how it drove before. He likes it a lot. It's behind a stout 511 Hemi.