Riveted frame pieces together. Left the aft holes of the tip ribs un-riveted to allow the addition of the brace for the aft rib part of the fiberglass tips that rivets to the top of the tip rib (SNX-T14 part).
Significant challeges with the center ribs that fasted to the top/bottom (fore/aft?) clips. Not enough room for the pneumatic riveter. I should have stopped, and purchased a decent manual riveter, but I forged ahead with the Harbor Freight $5.99 special. Big mistake. Just time consuming - had to disassemble to un-jam rivet stems, wouldn't pull correctly, etc. Also, the angle pieces I formed for helping to rivet in tight spots were pretty much worn out. Had to drill-out and re-rivet about 4 rivets out of the 12 fastening the rib clips.