sorry chum, when I converted my 65 Acadian in high school I found enough stock G.M. parts to get it done.
I used a 57 chev bell housing ( before I had the scattershield)The bell crank support bolted to the bell housing. The frame mount support can be moved to the left. The clutch rod was made from a shock absorber shaft because of the length. my situation was a little different,same problem,,,also had to change throttle linkage because the extra heavy clutch that ended up in the car would torque the engine enough to bring up the rpm when in stopped at a stop sign.
good luck,its not that difficult really