My local Jeep dealer has most of the parts for a used OEM winch bumper. The actual winch mount is missing, but that's probably the easiest peice to fabricate, as it's just a big piece of angle with the ends capped and drilled. What is there are the extended bumper mounts with tow hook mounts, diagonal reinforcing mounts, and bumper with hawse fairlead.
Only catch is I'm in Vernon
2002 KJ - staying stock (almost)
2000 TJ - 2" suspension lift, 1/2" body lift, assorted skids, hooks, rock rails, rock lights, 33" BFG MTs, custom bumper, Warn 8274 Mud Puppy's Jeep site