I just bought my 1968 convertible firebird . There was some body work done to the car before i bought it. The rear quarters were patched or replaced. I really started looking and the inner wheel wells have some of the lip that was roted away but it was blasted and primed. How hard is it to fix. Do i need to cut off the quarters to replace them? Any suggestions? One other thing on the rear of the frame rails where the leaf spring bolts to, it looks like the factory put some kind of overlap metal there. It is also slightly gone on the bottom but doesn't look like a support problem. Any help or advise would be greatly apperciated. Denko