I'm looking at buying a 1990 Four Winns Freedom 170 17' bowrider with a 2.3 OMC Cobra Ford I/O. The hull is in fair condition but has a couple small cracks in the gelcoat but the floor is solid. The seats need re upholstered and the engine turns over but has not been started in 3 years. The outdrive is in excellent condition and still has all the original paint and decals. The guy wants $500 for it and that includes the trailer. Would it be a good deal even though I have no idea about what shape the engine could be in?