@CanadianSpaTechis right. You will be rebuilding tge frame, cabinet, pkumbing, and probably equipment, if you can manage to move it with no frame and not damage the shell. Run, don't walk, in the opposite direction. You don't want it, and they are trying to avoid the $500 or so it will cost them to get that junk out of their yard. Don't be the sucker that falls for it.
Between myself and Canadaguy you have over 50 years of repair experience telling you not to touch it. You should listen.