Anyone had experience using a small electric outboard? We've got a 1974 O'Day 20 and I'm tired of messing around with the Honda 75. Nice little motor, but me and small gas engines just don't get along. (It's also pretty heavy to pull in and out of the water while sailing; I've got back issues.)All we need is something that will move the boat in and out of the dock, and putt-putt us when the wind dies. We're strictly lake sailors (so far), so power isn't an issue.Ideas? Required size/power?