I thought about taking the power steering pump apart, sandblasting each part, and rebuilding it with all new seals - but this is where I drew the line.  I painted the rusty steel hub with rust converter and cleaned the aluminum with Awesome, I will paint it satin black.

FYI, driving the AC compressor clutch off with three 1/4-20 screws is NOT the right way to remove it.  The threaded holes are to attach a pulling plate.  But it worked and didn't really destroy anything.

Here was the original sticker on the AC compressor.  I removed it and might recreate it after paint.