Well...if you need quarters, looks like Goodmark's has a lot
less issues than AMD's.
Also, if you need a pass. front fender, I wouldn't get Goodmark's (AMD has no fr fenders...yet), so find a good original.
If you're going to change all four quarters/fenders, I would get the '70-'71 style. Might as well. I'm partial to the side markers of those years.
Leave off the vinyl top. Those things are rust traps; plus they look better w/o.
For the '72-'74s, I like it when the grille/grille chrome is blacked out and painted bumpers/mirrors, no rear deck/quarter trim.
E.g.: