There are a couple of companies that make a 3 pt. hitch with hydraulic motor set up. They come complete with the quick attach plate that has adjustable 3pt. hitch attach and a hydraulic motor set up to take your PTO shaft with no alterations to the shaft. The cost is about $1,800.00. Search the Skid steer attachment companies on the web. If you want to build one, you can use a spider link (hub for each shaft with a rubber link between them) between the motor and shaft to make the hook up. Any good bearing or gear distributor should be able to help. Joe