Roy i was in same position as you approx 6 mths ago , id right a page up with all the motors your lookin at ,even a new old tech 2 stroke ,have their hp,weight,cubes/liter,amperage,servicing intervals and approx costs over their warranty period ,are you going to be trolling,blasting to yr fav fishin spot ,cruising with family for the day ?.then get prices on all of them fitted make sure props and controls are in the price. and dnt forget are you going to be using it everyweekend or maybe only half dozen times are year? are you going to keep the boat for a while as you wont recoup much money for the old boat only for the motor, lots to consider.