RE: Mud Motor or Outboard?
If you are covering that distance over open water with the possibility of some waves and chop, I would go with the outboard. The mud motors do not plane a boat up like an outboard does. Therefore, when going over open water the outbaord will keep the nose clean and out of the water but the mud motor will have a tendency to push into the water with the possibility of water coming over the top of the nose of the boat.