Ensure you get a survey, they should inspect everything, check the motors and run all systems. Should be almost no issues with a boat of that vintage if taken care of. The usual suspects are wood coring (decks, transom and hull coring). There was some folks that had water intrusion is the hull coring used on the wider beam boats, mostly from the blower inputs aft. Use a moisture meter and inspect the areas well. Look for any rust or evidence of water getting into things it shouldn't down below. If possible get a sample of lower unit oil and inspect it for water. Ensure props are in good shape and stainless. The enclosure is probably close to getting need of replacement if used a lot. Look at base stamoid material, plastic glass, stitching and zippers.