Riveted the 0005 and 0006 ribs. What a pain in the butt to get those in! Lots of stuff in the way, and hard to keep the surfaces mated while trying to bend the ribs enough to get the rivet gun and bucking bar in place. Had to drill out 1 rivet.
I never deburred or dimpled the stab skins, and that's what goes on next, so I'll need to do that next time, before any more assembly.