I recently purchased a used MEC 9000, which was configured to work with a hydraulic pump. However, it was lacking the pump itself and the hoses. Even thought I did get the unit for pretty cheap, I was hoping to avoid buying a new pump from MEC for $800. Do I have other options? Would any hydraulic pump work as long as I could release the pressure at the end of the throw? Looking for some tips, tricks, suggestions, advice. Thanks in advance for the help!