I have an 11ft Nautica tender with a 40hp 4 stroke engine. I would like to be able to drive it up onto some type of floating dock to keep the bottom clean, so that I do not have to pull it completely out of the water each month. The boat is docked at a slip in a marina. I have tried the EZ Dock system and that does not work with this particular boat. Does anyone know about anything else out there that would work?