Nice work Noel,
I'm currently playing around in the same area. Have to figure out how to get the forward facing outlet on my R380 to end up at the back of my cab :(
What sort of flow rate and pressure are you running for your winch?
Does your control valve have a built in pressure relief valve?
where will you mount your hyd reservoir?
here is my CAV and hyd return line filter positions. Hyd solenoid control valve will be to the right of the filter. Oil cooler for R380 far right side of cab.

