Thanks, Craig. I found a fan and a pulley, but it's broken. I think I might try my hand at making one on my lathe out of aluminum.
The generator is a 22483A, date stamped 11/54, so it's correct for a 1955 100. My car was built in April 1954, so it'll work but it's not totally correct. BTW, if anyone needs this one and has an earlier one that they want to trade, I'm open to exchanging the bodies.