I ended up ordering the right intake manifold gaskets from Speedway: Edelbrock 7201 Intake Manifold Gasket Set, Small Block Chevy 3257201 $ 17.99
The clutch came from RockAuto - 1954 CHEVROLET TRUCK 4.3L 261cid L6 - BRUTE POWER/PERFECTION CLUTCH 90628 Clutch Kit $75.79. I got the clutch and it's Chinese made but I guess I should have expected that for $75.
I really wanted to keep the floor starter so I ordered this floor mounted momentary switch from Jegs: Crown Automotive A7225 Part Number: 077-A7225. I think O/E application includes several CJ series Jeeps.
