Got most of the way through riveting the main spar box and aft spar to fuselage. Need to receive the order of CCP-46 rivets to do the left side aft spar to its mount angle. The 200 of these included in the kit should be sufficient, but I drilled out maybe 25 of these in attaching the wing ribs to the main spar. Used up the bag of 2500 CCP-44 rivets, but had ordered a bag of 300 more - I know I wasted somewhere around 100-200 of these in the F12 assembly that I scrapped. I hope there's enough to get the aft fuselage bottom skin on after using maybe 100-150 of these on the spar box and spar box angles to the fuselage sides.
Right side all riveted (photo taken after flap pushrod installed).
Left side all riveted. Still need a short puller for inside the spar box.