68 fish fastback rear seat question

thanks guys. i put a piece of thin masonite under the carpet of the rear deck but wasnt sure if that would be too thick for the seat. i will find a stiff piece of paperboard or something similar. i had the seat frames blasted and powdercoated so they look better than new.

my upholstery guy asked me "why do you have a white interior if your a mechanic?" damn good question............