this is what I did when I freshened up my interior of my old 87 that I sold recently. I bought the SEM Shadow Blue Color Coat at my local paint supplier (English Color) for $12 per can. Cleaning and prep is the most important step. First I mixed in Clorox with a large busket of very soapy water and used a scuff pad to clean every inch of each piece and then rinsed thoroughly. I repeated this process 4 times for each piece. Next I dried off each piece with a lint free microfiber towel. Then I thoroughly cleaned all pieces once again using automotive grade lacquer thinner making sure to only wipe in one direction to keep from spreading the leftover residue. After all this was complete, I let everything sit and dry for 24 hours. Once it was ready for paint I did 2 light coats of Bulldog adhesion promoter with 5 mins between coats. Finally I used the SEM color coats and sprayed 6 lights coats on each piece with 5 mins flash/dry time between coats. I let everything set for a few days to make sure it was completely dry before I begin re-installing.