Question on ac parts.

Personally, I would only put an RV2 compressor on a car that already had one. They are a heavy beast and the plumbing is cumbersome, such as a thick metal suction pipe w/ damping chamber. A modern Sanden SD7 (H13 or H15) is much lighter, smaller, and more efficient. Ditto for a modern parallel-flow condenser, and use common O-ring fittings. If you shop around, you can get both new for ~$150 total on ebay.