Cutlass parts needed

Later this summer, my pal Mike and I are going to re-do (with a bunch of mods) his '69 Cutlass S Convertible. It has the original Olds 350 in it now, (runs like a dream) with the automatic. Mike would really like to have a 4 speed in it, so I'll be needing all the goodies to switch it over. I imagine the pedals and stuff are the same from other GM intermediates of the same vintage??? Thinking the most difficult things to find will be the bellhousing and flywheel. Also, anyone remember if Olds of this vintage ran a Muncie or a T-10??? I've got some good T-10 stuff laying around, but could use an aluminum case, for sure an input shaft and other goodies, or even a good used trans.
Mike's retired, not loaded with bucks, so used stuff would work out best for him if the price is reasonable.... Please let me know if you can help with the parts!!!!

Dave you are correct on the pedals. And as far as the muncie or t-10 I'm thinking it could have came with either and I'd rather have the T-10.