I drilled, deburred and countersunk the holes for the three nutplates for the tank support near the wing root. Attached the nutplates with rivets, using the gun and bucking bar. Set up the spar upside down on the bench using the supports and shims from the left wing. Working solo I was able to flex the spar down onto a bucking bar on the bench below and rivet ribs to the main spar.
