18" Camaro or Corvette wheels wanted!

Sup guys!

Looking for some wheels to keep my 68 Chevy truck a roller. I need 18" wheels to clear brakes. C5-C7 and 5th/6th gen wheels will fit for what I need now.
It is converted to GM and Ford lug patterns (dual pattern) 5x4.5 and 5x4.75.
I don't need anything nice. Just something that holds air. Free is best. Cheap is good.
The long term goal is to end up w/ some 18x12/13 wheels on all four corners w/ 335's. In the short term I may just run some 18x10's w/ 305's as I can get the wheel for under $160 each.
Anyways.....
For now I just need to get something that will allow me to install my calipers and keep it a roller.
Let me know if you have something or know someone who may.

Text me @ eight one seven, three five zero, three five four two.