After a week on business travel, I returned to finish fitting the skins, stiffeners, longerons, aft deck, and doublers.
Here drilling the aft top skin to the stiffeners.
Fluting the frames is required to get a smooth curve on the skins.
Walking the forward top skin to the frames. This time I started at the top and moved downward.
Rita says it looks like a porcupine. I think it looks great.
Fully enclosed tail section!
Next day I drilled and clecoed all the aft deck parts.
The horizontal stabilizer attachment points are reinforced with 3-4 extra pieces of fabricated aluminum. This photo from above shows the alignments along the center line.
Close-up of the clamped, then final attachment brackets.
Here is the aft deck fully drilled and clecoed.