I have a 94 Sea Ray 220 that has a dry weight of 4,000Lbs. It has a 50 gallon fuel tank and an 8 gallon water tank. Fully loaded it weighs maybe 4,900lbs. I have found a Powerwinch 315 for a steal of $169 and it says it is rated up to a 4,000lb boat. Considering I pretty much have to dunk most...