Well, you have seen the pics of my rig. I did a lot of things wrong, and it has still pulled me out of everything I ever got into and everybody else I ever hooked it to.
When I bought the winch from Sam Wyner motors, I asked what were the max specs needed. I told them to assume maximum load and duty cycle.
They said I needed 20gpm@2500psi.
Plus, for continuous duty, I needed a gal of fluid in the tank for every gpm for cooling purposes unless I ran a cooler.
I called a hydraulics supply house, and told them I needed a PTO and pump for a 205, hooked to a C6 transmission. I wanted the 20gpm@2500 at about 1500 rpm on the motor.
They sent me a fairly large pump. When I hooked it all up, the winch behaved strangely. Seemed to be starving for fluid. Turned out that large spin on filter Wyner sent with the winch was a return line filter, not a suction like I thought.
You need a coarse screen on the suction, with the finer filter on the return. Since had already built and plumbed the tank and system, I bypassed the filter, and have been running the system for about 26 years with no filters.
Not good.
But, I have a large tank, and change the oil regularly, so I have gotten by with it so far.
I think you will like the setup. My only regret is the difference between it and my old truck with the shaft driven winch off the PTO. With it, if I were pulling someone out, when I got them mostly out I could put the transfer case back in gear, put the transmission in reverse, and back the truck up to pull them out quicker.
Of course the winch turned backwards when I was doing that, but it was so much slower than the tires, it made no difference.
With this system, I have to disengage the PTO, or I will spin the pump in reverse, and it is supposedly bad for the pump.
Bear in mind, my winch is a lot bigger than the one you are looking at, so you fluid requirements are different. Also, the planetary system is faster than the worm drive of mine.
You will like that.