Did the best I could to get you dimensions, without tearing everything apart. I think the most critical dimension you already have, based on your pictures. It would be from the pivot point down to the "bump" in the rod that prevents the bushing washer from sliding up. The remainder of the length doesn't seem critical, and depending on the thickness of the bushings you use, just sticks out. I've attached a few pictures that might help. It looks like the rod is 10" long.
