Kamekura Puncher (Junk)

This is a junk item of a Kamegura puncher. The reason it's junk is that the motor spins, but the hydraulic pressure does not engage. I received it from a friend and tried to repair it myself, but I was unable to fix it. I would appreciate it if someone who can repair it or use it for parts would consider it. As for the puncher blades, they are 10mm, 12mm, and 14mm. The 14mm blade is not in good condition. I believe the 10mm and 12mm blades are usable. Please only bid if you understand what a junk item means.