I went with NOS or OEM for most of my body panel parts. The only thing that was repop was the rad support. It all fit amazingly well.
Good NOS panels were available for longer than you might think. Sure some bad ones were done but a good lot of old NOS panels were just sitting in the parts room in Pontiac dealerships.
Any parts that have the GM sticker but has a www address on it is just a GM licensed repop. The more you stamp out panels the less effective the process.
Unless your a body man, it's more effective to get excellent condition(NOS or OEM) body panels as this will greatly reduce your labor costs in the long run.
Engine Test Stand Playlist: https://www.youtube.com/playlist?list=PLwoxyUwptUcdqEb-o2ArqyiUaHW0G_C88 restoring my 1968 Firebird 400 HO convertible (Firedawg) 1965 Pontiac Catalina Safari Wagon 389 TriPower (Catwagon) 1999 JD AWS LX Lawn tractor 17hp (my daily driver) 2006 Sequoia 2017 Murano (wife's car) 202? Electric car 203? 68 Firebird /w electric engine 2007 Bayliner 175 runabout /w 3.0L Mercuiser__________________________________________________________