I purchased last year a 2008 SR310 used boat from a reputable marina. the hull/shell were in immaculate condition as the boat was stored high in a boat garage. The engines are Merc 6.2l DTS Seacore 320hp i/o with Bravo 3's with AXIOS - 200 hours. The boat had many issues and the marina worked on replacing all the parts needed - the boat surveyed very well through a reputable captain. I'm trying to see what else I can ask for before final delivery. Here is the list of updates by marina: Starboard engine: rebuilt with valve job, new manifolds and risers Replace Fuel Module Replace Distributor Replace Starter Replace Risers, Elbows and Manifolds Replace Head Gasket Replace Spark Plugs Replace Water Pressure Senders on each engine Replace carrier bearing on starboard drive New VHF radio and VHF antenna, Garmin GPS head unit and antenna Replace Glomex Replace prop nuts Change Anodes Replaced all hoses on each engine Initially Replaced both lower drives and then replaced upper drives (basically new Bravo 3?!?!?) New clutch cable Few cosmetic replacement (new Isenglass in Canvas, light bulbs in cabin, few) I have asked to check end of life for Risers and Manifolds on the port engine what else should i be looking for before final delivery or ask for preventive maintenance I can ask for? Boat was stored and launched by the marina. I did not pay for any of these services. appreciate your input!!!