Here is a very good shot of a NOS piece should you try paint. I paint all of my parts like this with spray enamel, usually good quality model paint (Testors) or Rust Oleum. First, I mask as well as I possiblly can, for some difficult areas I coat them with Vaseline, things like inside portions of numbers/letters. I then spray the color and within 10-minutes I remove the masking tape (3M Blue) and the Vaseline with a Q-tip. Then I use Bamboo skewers (they come in a bundle, most grocery stores), these have a very sharp point which I then use to remove the tacky enamel along tape lines. Is it time consuming, yes, but I have used this to make nice finishes on gas pumps, Coke machines, and my truck parts.
https://www.flickr.com/photos/advance-design_parts_co/16025567349/in/album-72157631868452754/
