Hello, I've recently purchased Intex 400 inflatable raft. I'm seeking a motor for it I think that I should seek a gas motor instead of battery powered. I believe 2.5 hp is appropriate. The Intex 400 motor mount suggest for battery powered motors will it not support a gas motor. Do battery powered motors work well? Does its power last any? I am a first timer and looking for advice on subject. Does the boat need be registered for lake use. I dream of using a sail on it one day. Thanks folks.