my buddy and I split this boat. This is my first after I helped him work on his. What should I do as far as maintenance/preventative maintenance to get RELIABLE service from this boat. Also what can I expect in terms of top speed/power from this engine? Ultimately we want to redo the interior (big surprise right?) bring the boat's maintenance up to speed and sell it. Any idea what this would fetch with an after market interior in NE ohio?