the red one is a z-28 i was of fon my years
on any f-body i get if i have to do a fuel pump i cut an access door in the hatch area , and make a bolt down cover with weather striping to seal it. takes me 10 minutes to get to the pump if i have to change it or go in the tank for any reason.
i try to buy ac delco parts when ever i can
z28-iroc-rs all are worth some money in good clean condition, as clean good condition cars are getting much harder to find.
10 years ago u could pick up a mint car for 1k , today a mint clean car is 5-7
a clean v6 rs is the exception great condition those sell for around 2-3k