AMD does not selll the lower quality "X" quarters anymore. Matt's Classic Bowties has good prices on AMD tin. Due to sales volume they beat my price even with a discount. There's a thread on Team Camaro about AMD quarters' pros and cons.
Mike, Make sure to fit the shell to the adjacent panels first, loosley hang the skin on the shell, and final fit it before nailing it home. Disregard if you've done this before.