Then I have a pile of parts set aside waiting for something to attach too.

Picture two shows the aft lower skin getting dimpled and it will be the base for all the previous pieces. Some of then are clecoed together in the last two pictures.

The tall bulkheads are very flimsy so Van’s says to build this section upside down between two sawhorses. Instead I fashioned some more stabilizer pieces from scrap stock to hold things in place.  I did this because I was going to back rivet all these pieces together instead of bucking them. Much simpler.