Tough question, because '75 non-convertibles are about as low on the price
scale as you can get.
However, they are climbing like all C3s. Not a lot, but some. That said,
it will be those that are stock and original that will probably draw the
biggest dollars, although nicely modified and hotrodded ones today get the
I'm with Wayne on the paint. Two reasons - 1. original color of silver is a
nice one. 2. If you live in Florida, RED is NOT your color. If you compare
yours to any recently painted, you will notice yours looks a bit Pink. Many
of the dark blues are also to be avoided in Florida due to fade.
I would also consider the rubber bumper if you can find it for originality,
if you are planning on selling. Many Corvette buyers today have no concept
of how they got modified and why, so they instantly assume that a car is
changed because it was wrecked. That isn't a good assumption for the
seller, and once assumed, hard to get past.
Now Miami's sun will play havoc on it, and turn it brittle and broken in a
few years. So if you have inside storage for it and you don't leave it in
the sun all day long at work every day, go with rubber. If you plan on it
having a large percentage of time in the sun, or your storage is a carport,
then the flexible fiberglass makes more sense as the UV has less effect than
on the rubber.
Hard fiberglass looks the best, but remember the assumption on wrecks.
If you have the car in primer, what are you waiting for? Sand it down,
prime it fresh, then lay some nice new paint on it.
If you need someone to paint it, go see George and Ken at Fabulous in Dania