Just to let you know, if you did't already, the brakes on your Corvette go back to the technology of 1963. C3 Corvette brakes have a continuous parasitic drag...i.e. the brake pads are in continuous contact with the rotors. Modern disk brakes minimize this contact. If you've a warped rotor, it's going to make a squeak I think. If this is the case, the lubricant suggested to add between the caliper pistons and the back of the brake pads is not going to help.
As for rotors, there are some for sale at very cheap prices. Unfortunately, if you have a repair shop replace your rotors they may buy these very cheap rotors. The cheap rotors warp very easily.
I replaced the brake pads and rotors on my DD Thunderbird with premium parts. They chirped for about a month or so!!! Completely quiet now.
.......wish I had something substantial to say to help you out. Turn up the sound system .