Went through all holes on skin and frame for burrs. Overlayed the skin back on to the frame, cleco'd, and inserted rivots. Turns out that there were about 6 rivots that wouldn't fit in the holes....Then I remembered to re-level. Well, heck, the spiffy digital level has gone bad while sitting on the shelf over the last couple of days. Batteries were dead, and when replacing them, it reads 10deg off. Well, Seeing how this is Christmas Eve, it'll be a couple of days before anything is open again for me to replace the level and continue.