Get your captains license and rent it with captain and crew. You protect your interests (boat) and the insurance will be not as expensive. If renting out your boat you need to have available someone to be able to go out to service the boat if something breaks/malfunctions while it is out. If you have to call someone on the spur of the moment that can get very expensive. There is a reason they rent of $4+ per week. If you don't have the time to captain it yourself, try the weekend only thing. You can get more per day and just do 2 or 3 days. Just a thought.

Clayton