FWIW, I scraped my Ilmberger belly pan while at the track, sent Julius (Ilmberger) an e-mail and he said to throw some clear lacquer on it. I sanded it a slightly and then sprayed it... looks great, can't tell by the look, still can feel it a little because I didn't want to sand too much.
Point is, if someone buys these from you, they can easily be touched up!