Tired 3 OTT to ?

[tutone]

Did a pretty thorough search and still haven't found much in the way of good overall answers. The old column shift on my shop truck is worn. not locking up but just sloppy. The syncro rings are right there with it in first gear. I'm lucky enough to have a healthy 350 and 3:73 rear in it, so the tranny is all I have in question. I also know that I could put a 3 speed floor shifter in it and squeeze some more time out of it BUT, I want to hear if any of you have made a Muncie M-20 or M-22 swap successfully and details on the outcome. I know my rear gearing is a little low for a 20 but I think a 21 would work. Anyhow, will I need another bell housing and the works? Never tried it in a pickup. Also shifter location is another question , since I intend to keep my bench seat.
I have collected several swap over parts for an auto, but that is a little boring, since I have a third pedal. Opinions?