I am having my 30 Model A roadster painted using PPG basecoat & clear coat. After the basecoat is laid down and after the first coat of PPG clear coat I am having real flames air brushed on a portion of my 32 hood and flames coming out of my dual vented Hagan side scoops which will be cut out. The air brush painter insists on using BASF clear over his air brushing of "Killer Flames." My concern is if this BASF will be compatible with the PPG clear coat or if it would be BEST to have BASF applied directly over the PPG basecoat? I have NO idea what BASF clear coat is or even who makes it? ANY SUGGESTIONS or recommendations would be greatly appreciated. I want to do this RIGHT the first time around!