Great conversion. I have the Sean Carpenter 65 2+2 convertible conversion that is a shortened and a corrected body. I figured I would use the 65 Grand Prix chassis. I have never built it and plan to but was also wondering what to do with the tailight panel. I thought about different ways to cut the rear lenses out and adding the filler from another tail panel. I doubt it would look good as that goes a tad beyond my skill levels. Thanks for your post !