Electrical sounds good so far, a good main battery and maybe adding a 2nd smaller one in the back might help. I'd wait and see if you have dimming issues before spending money on extra batteries. If you do need a battery, a Kinetik HC800 or an HC1200 would help in the rear, small, cost effective and will handle the smaller system you have. Much better than an Optima Yellow top, and probably less $$ too..