Change the fuel in the tank .This is probably a good idea on any long sitting car for sale ,the fuel might have been the reason behind its long sit.

"Honey ,did you fill up the car today ,yes dear ,I bought the high octane at the pump but your engine doesnt seem to like the expensive stuff for some reason."
WHAT!
Yeah ,it just kept clattering like it was falling apart ,I made it home though ,barely ,arent you glad I saved the towing charges.