I riveted the remaining holes and hinge brackets using universal head rivets. Per the instructions, the manufactured head is on the aft side to allow better clearance when the skin is riveted to the spars and ribs.
The next steps are to cleco the skin to the front spar and rib assembly, rivet the skin, cleco the rear spar assembly and rivet it to the ribs, then rivet the aft skin to the rear spar.
