My opinion is if you buy a cab for $800, have is match painted to the turquoise truck, swap all the dash and interior into it, you have a $25K truck. Then build/assemble the grey truck and you have a $10K truck ( or more, depending on how nice you make it). Not a whole lot of skill required, just a lot of work that will pay off. Seller says it was "rolled" but don't know how you roll without other damage. I'm thinking something fell on it? Not sure.
There are many parts that you won't use, so you can sell them and pay for the paint and other needed parts.
None of us has seen the stuff so it's just .02 more cents.

Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn