I've tried Future, Tenax, and primer/sealer over areas where I've removed door handles and other items. Future and a final coat of Duplicolor primer/sealer seems to work the best for me. By the way, I only shoot HOK paints.
Thank you guys. Sorry about the interior pic. I don't know how I missed taking one. Ray - I think you'll like the interior on the '62 Pontiac I'm building. Full length console between the 4 bucket seats.
I think it worked out pretty well. I've used the same process to cut horizontal lines before. Red acetate with some BMF on the back does the trick for me too.
Finished another one last night. My '34 Ford is painted with HOK white with some Pearl Ex violet mixed into the clear. Did a wheel/tire swap, otherwise it's all from the kit. Dummy here forgot to take an interior pic. It's the kit interior in white and lavender with deep purple carpeting. I used a cutoff wheel in the Dremel to cut a spot for the taillights.