Would like to keep it a 4 speed. Will a muncie m22 go in the truck while keeping the original floor? And what about adding overdrive? I think it would go nicely with the 4.10 rear after I swap the third member. But this is new territory for me, so I am open to suggestions.

I would like to know what has worked for others, I am amazed by the work some folks have done to their stovebolt.