I'm considering purchasing an older Sea Nymph aluminum boat. It's 13'-6" long and has a 60" +/- beam. It currently has a 7.5 Honda 4 stroke long shaft motor but I have 25hp Johnson I'd like to put on it. The the wood part of the transon only goes about half way down the transom. If this boat won't handle the 25 I'll probably pass. I have digital photos but don't know how to attach them. <br /> <br />Also, is there any way to determine the age of a boat like this?