I would just match your pump output to a hydraulic motor, seems like it would be larger that .7cc. You don't want to much pump , and not enough motor, or the relief valves would be bypassing. I believe that your
pto output is solenoid control, and therefore you have full output at all times, where as mine, has a handle control, which I can control the
hyd flow. The blades for this deck would normally turn about 1600 to about 2500
rpm. I have used the Snapper decks before, and they will suck the dirt right out of the ground with that rounded deck.