Oops, I misread your post and thought you were looking for one.
I'm assuming it's a K-5 cylinder with the rest of the hardware from another source. I'm not sure if it makes a difference, but I think the K-5 ram is unbalanced, meaning I think you'll have more turns lock to lock in one direction as opposed to the other. They also have a fairly large volume compared to many other rams. I would be certain the ram works OK with the pump, reservoir, and valve before buying. I've never seen a K-5 on an add on system.