You don't see many older vehicles in Florida as the climate in every part of Fl can be as damaging as the salt in northern states. My tools will rust in one day if not brought into an air conditioned shop and wiped with wd40. Check for the obvious rust that Will be there or bondo'd over. I used to have a magnet that I would use to find bondo. Unless that truck has been kept in an air conditioned garage I would not believe NO RUST.