Hydraulic winch pump

hi, i'm putting a superwinch h9w on my discovery, but having trouble finding the right pump to power it, (belt driven pump not pto) does anyone know about these sort of things? any help would be appreciated

I'm sure its not recommended at all, but I did briefly one many years ago that was run off the power steering pump, the next time I saw it, it had two steering pumps, one for winch, one for steering.

Might be worth looking at commercial breakers, transit tipper, that sort of thing although many of them may well be electric drive.