Yea, machinists don't really like sheet metal working much. In a dump truck (you know the year?) probably a 90 not a 60. I'd have her (or you) contact the link I gave. If she has any paperwork on what (and who did the work) that would help. It's 'crate' motor vs shade tree that would bring more $. Some auto museum might be interested in a pre/post war dump truck or parts, probably want a donation thing, still a tax write off. She still has the problem with his shop stuff?