Do any of you guys have any tips on restoring/painting 66/67 dog dish caps. How do you get minor scratches out? Any templates for masking prior to painting? Tips on what to use to mask? Painting tips? Gloss of black? I was quoted #125-$200 per cap by one company, so looking at trying to do it myself. What is the composition of the caps? Are they chrome plated stainless steel or what? Thanks.