Is there indisputable documentation that the car is 54 K miles?

Does your guy have a spare car he can drive when this one is down for repairs?

Don't expect to just walk into a random auto parts on a Sunday and walk out with anything you need. At minimum it would have to come from the central warehouse or you would have to order from the sponsor of this board.

Even if the 54 K is genuine, time takes a toll on cars so expect to change parts before they break in order to reduce the number of unannounced breakdowns.