Riveted all external former locations and the upper longeron runs.
ALMOST done; still have to place the AN3 hardware for the vertical surface of the upper splice plates, then rivet the bottom of the crosstie box.
Although SNX-F18 says it's OK to rivet the bottom skin on now, I'm gonna hold off. I'll want to run some antenna wire (maybe) and bolt the seatbelts in place before then.