Pop riveted the spacers to the ribs and bolted in the light fixture bracket. Fits much better with the spacers. Stuck the backing strips to the plexi with the double sided sticky tape. Had to trim the plexi about 1/8” more across the bottom edge in order to slip the lens inside the wing. Inserted the screws and tightened them up. Very pleased with the way this lens fits the wing-- fits even better than the one on the right wing.
