Welcome! We have the same boat, no backup propulsion on ours, but several others on our dock do. I like FF's idea as well, I've also seen several with 10hp kickers on hydraulic lifting brackets, used mainly for fishing.
The standard rudder *may* be enough to have some control, but these boats do have a reputation for difficult low speed handling. I do most of my slow maneuvering with a hard over rudder and quick bursts of throttle to get some water moving across the rudder. The low hp option might be enough to get you to a marina, but you may need some help once there getting to the dock.