Are you talking about just performance boats or cruisers and fishers as well? Marina folklift load ratings are calculated based on a 96" load center so just because the boat weighs 12k and the lift is rated at 15k does not mean it will lift it, it depends where the load center is. Performance boats are usually have a load center close to the back of the boat so they are easier to lift pound for pound. If that is all you are looking to lift then something like a 20 or 22k Wiggins or Taylor is would be your best bet, They have some smaller models but this will leave some flexibilty. They start in the 260k range and go up into the low 300's depending on options. If there is a serious interest shoot me a PM and I can get you a listing of all of the used stuff out there in the States right now with pricing.