I'm running a 260 with a stickshift, but it isn't finnished yet. I built my own pedals and linkage but I started out with a standard shift set up. Remember the early small block Fords have a different bell housing, I think they changed around 65 or 66 so you have the early 5 bolt.
I am going with a T5 to simplify the shift linkage and to have overdrive.
Watch ebay for everything you need, I have seen the complete set up go pretty reasonable.
You might also want to consider a juice clutch, that avoids having to build linkage.