I think most of these repo parts come from the same manufacturer in Taiwan. I have had a mixed bag of luck with repo parts. The two doors I bought are not cooperating very well to say the least. The floor pans seemed fine but the edges were bent up, not down, to overlap the step area. It was annoying to have to rebend this. The driver side fender fits pretty well. The bedsides, tailgate are perfect. It seems like the nuts the manufacturer welds on are always a little off.
My suggestion, and I am no pro here, but cut out as little as possible. If your floor pans are the only thing rusted, then just replace those.
