My 63 has semi gloss engine compartment from the factory. The pic is from under my wiper motor. It’s a good quality paint. My car was undercoated, if that had any thing to do with it
The seat upholstery made by Distinctive Industries is an exact repro and has the carpet on the lower front seat backs like original. They also make the door panels which are also exact match. You just have to transfer your chrome from the old panels.
eBay is a great source, or go to their website for dealers.