Boat came with a 1981, Johnson 70hp, but want to re-power with something smaller, and also do work on transom, so it must come off,but haven't decide whether I will sell motor with/without controls, I might need them for the new motor, (used, but new to me), but either way, they need to be disconnected to remove motor, but whats the best way? because the shifter control box won't fit thru the hole the cables go thru, so should I disconnect cables at the motor, or at the control box and pull 16ft of cable thru and sell with the motor, I don't want to screw anything up. I have looked online for a step by step video, but can't find any, I'm sooo confused, Thanks