This is a backhoe off a ford major tractor. It is not a 3 point but bolts to the tractor frame. It is has its own hydraulic supply and pump. It needs some TLC but is usable. If you want you could run it off of the tractor hydraulics.
This has a lot of hydraulic cylinders, hoses, spool valves etc which could be used for your projects. Bucket is 16 inch.