I had a few leaks in my jon boat. Went to the boat store and they sold me an epoxy that you need like play dough then put it on the leak. Sets up real hard and you could sand it if you wanted. Has lasted 3 years so far. As far as the trolling motor goes I have a stern mount Minn Kota 55 pound thrust variable speed. I like it because on a windy day you can set it to just the right speed. All the other ones with 5 speed forward and 3 reverse seems like one speed was to slow and second speed was to fast. And if I need the speed or power I have it.