Joseph, Here's another direction for you, why not go with a modern automatic. This way you don't need to find all that clutch related hardware, you can get your overdrive trans and sell all that rare stuff to another guy that needs it. You can have a floor shift like Lokar etc, works great and looks more like stock.
I'd contact Buffalo Enterprises (360 652-7684)re. Makes the GMC to automatic adaptor set up you'd need plus this guy has a zillion tricks up his sleave for Chev/GMC stuff. ALso Langdon's Stovebolt has an adaptor.
Best of luck
Jim

Last edited by JiMerit Boltr#43; 02/17/2012 5:07 PM.

It's easier to get forgiveness than permission!
1946 1/2-Ton Chevy
1953 Chevy 3/4-ton Factory Stakebed