With respect to a 300 TE with only 64K on it I'd want to know if the following has already been done: head gasket, water pump, fan clutch, radiator, belt tensioner. And of course whether the evaporator has ever been changed.

On the wagons you have the additional issues of accumulators, and suspension members which wear faster than the sedans, also the rear hatch struts are a bit of a pain to change.

Everything is dependent on what you have to pay to buy the car as to whether it's a good deal or not.