Riveted the leading edge assemblies to the main spar. Was able to use combination of hand and pneumatic rivet squeezer for four of the seven ribs in each assembly by accessing through the lightening holes in the main spar. The remaining three inboard ribs have no access holes so these need to be riveted with a gun and bucked from the inside by reacing your arm inside the leading edge through the nose ribs. I was able to do the first two inboard ribs solo but had to get help from the wife to reach in for the third. She did a good job bucking these rivets and inspecting by feel.