If it was me I would certainly have no less than a 24 volt motor. Nothing less than 80lb thrust. I have owned both Motor Guide and Minn Kota and I am a Minn Kota man. The Fortex is gas assisted and very easy on your back and arms. As far as wiring all the boats I have ever owned which are Bas Boats and every length,model, and make have all ways had the batteries in the back with a 50 amp breaker between motor and batteries. It's my belief bigger is always better. Easier to hold in the wind and easier on your temperament. Don't worry to much about wiring as long as you use the suggested size.......Ranger
Welcome Aboard and a Great Question.