I don't know these cars well enough, however, post the wire colors as it would help if someone has a wiring diagram.

Do some research on pricing the car ( Not one of the online blue book / NADA sites as they are not realistic for an older / needs help car. )

The 560's seem to command a higher price but poor condition can drop value of any car by 75%. There is a point at which where cost of labor can exceed just buying a low mile perfect car.