I come across a 1991 Pirata that has all the options including 454HO. A 60 year old man bought it new with trailer. boat was only wet when in use (400 hours) kept in garage for whole life when parked. The boat looks like its 2 years old and all original except he upgraded to velvet drive right after he got it. He is wealthy and bought it to play with in 1991 and has all the documentation and service history. My question is, how to check the stringers? i checked the lag bolts on the engine, all tight, took out rear storage tray, no cracks in anything. got under it, like new and no surface cracks. Again, what do i do to confirm the stringers are in decent shape? thank you in advance