@mohsin
challenger denting is almost complete, all the floors are replaced, both sides are completed , denter will start working on the roof, sheetmetal was very rusty so have to change some panels, I think the bare metal body was in the open air for long time otherwise american metal is resistant to rust
@neuro
I am thinking for a sandblaster too, mohsin have a gun so I have to buy a big compressor and some other tools, I was reading a magazine and I think new technology for rustproofing is zinc phosphate, have to research on it, I think I am too brave to restore the challenger 