My info guy finally called me this afternoon. I dated his daughter in high school and we're still close friends, so there's never any intrusion when talking NASA. But you can't kick back and have a few beers with him while trying to watch The Right Stuff or Apollo 13 because he gets bent out of shape at the inaccuracies.
On to paint. According to him the whites were semigloss, blacks were matte but not flat and any reds were high gloss. As far as he can remember any bare metals were coated in a semigloss clear but he can't remember if it was a paint or a finishing oil.