I just bough a new 25 foot boat and it sits on a double axle bunk trailer. My question is I want to replace the manual winch because the boat cannot hardly be winched up and has to be driven on and manually hooked to the winch while the motors are holding it in place. Problem is where we trailer sometimes the wind is blowing you side to side and I just need to hook the boat to the winch and hand crank it on. Because I cannot manually winch this boat up I want to replace the winch with an electric one. My question is how much pulling weight capacity winch will I need to pull the trailer up to the stopper and safety hook it, Thanks for the input in advance!