I know, I know; fronts are gonna be gone long before the rears and if you can afford a ZR1 are you really worried about the cost of brakes but here ya go anyway. These are GM wholesale pricing.
Front and rear rotors = $1,440.75 ea x 4 = 5763.00
Front Pads per wheel = $581.25 x 2 = 1,162.50
Rear pads per wheel = $441.75 x 2 = 883.50
Total 7809.00
Add about 15% for GM retail parts price = $8,980 for parts only. To see if you need rotors they have to disassemble the brake system enough to remove the rotor to weigh it. Each rotor has its own discard weight stamped on it. "NO sir, you don't need rotors at this point, that will 750 dollars labor, thank you very much" .So add in labor and tax and I am pretty sure you are getting out a ten thousand dollar bill to be paid in full. Getting GM wholesale pricing from GM parts departments is pretty easy. Get ya down to around 9 grand or so. So there ya go, for what it is worth.