AQ-20 Aquacart Professional Grade Series Heavy Duty. The cart is $480 new plus tax and shipping. I used it less than 6 times to remove a jet ski from a trailer and store it in my garage.
I also have an Aquacart 4-Tec Sling with a 1600 pound capacity for use when lifting Sea-Doo PWCs off of trailers. $160. Please see separate listing for sling.
Cart on Amazon: https://a.co/d/cEfxzBi
Sling on Amazon: https://a.co/d/08HY5J2