Only a couple comments. Someone in the truck section was looking for pictures of 67-68 power steering equipped K trucks. I assumed it wasn't available as I didn't see it listed in the option list. A lot of people agreed but someone posted this pic:
If the ram and control valve parts are the same as Corvette there are repair parts readily available and the seal kits are cheap. less than $20 for both kits. Rebuilt power cylinders and control valves probably only cost a couple hundred.
Manual trans and a 3.08 isn't a good combination. You'll be using a lot of clutch to get it moving.