This is an idea about how to do a more functional implement hitch. the idea still uses a standard triangle quick hitch, but it has a side to side actuator, as well as an up and down actuator where the arm joins the machine, as well as three actuators on the implement side of the hitch to give roll, pitch and yaw control over the implement. The concept would use the same pillow block bearings that my chassis design uses for the steering and suspension joints
This is the chassis design i used, in the standard FreeCAD file format. the sketches 'steering' and 'hitch' are what i used to work out how a hydraulic cylinder with a retracted and extended length would work, and manipulate the locations of the pins for those cylinders to get the desired result.