Thanks John!
All done but no adjustments made yet...
The bulky steel hinge mounts are gone, now just simple studs off the main chassis tubes. With the FFR setup, my hatch would bind up at the corners of the body if I opened it more than maybe 50 degrees. Have about 85 degrees of arc now, limited by the hinge endpoint. Very solid and fluid. Much happier with this setup! No more sloppiness or play in closed position.