Look at front lip seal and passenger side of head for oil leaks.. Even with that milage, these do not burn oil.
Great engine.
What I would do is look in the archieves for info on a led/sw flash code tool /procedure and go check the codes on the car as it sits.
If no codes , looks good..
Ask to see repair order for wire harness and gasket, cuz if they were not done , you will be doing them..