Painting is not a problem at all "Jungle jim did his custom set of seat belt buckle covers I did for him". Vapor smoothed or not. You can cerakote parts too. Which I am certified in as well.Interesting. Is that done while printing, or another step in the whole process.
Back to the wheel centers, how well does the printed product take paint? They may work for a lot of members if they can paint them to match their body color.
Vapor Smoothing, is an additional step in post processing. I currently work at one of the two company's that specialize in it. and we are currently the best hands down. I speak factually in that. The ram heads come vapor smoothed FYI, and the metal plated one I did for my self and Jungle Jim where vapor smoothed prior to plating. we can get smoothness values down to like 2 - 4/5 ish RA from 20 - 18 RA depending on technology and materials.