Here is my wacky looking setup to true up the wing:
![Image](http://i198.photobucket.com/albums/aa72/Aerowerk/A708C514-6230-4ABB-A6BF-38AE12D3915C_3.jpg)
I recomend marking the centerline of the aft spar attach bolt before you rivet the aft spar on. Or for that matter before you rivet the part to the spar.
Starting to cover up the ribs. At this point the skin is merely clecoed to the aft spar.
![Image](http://i198.photobucket.com/albums/aa72/Aerowerk/DDBBE047-3877-4049-9CA1-AA13F7366E3A_5.jpg)
I am thinking this is a good time to get pilot holes in the aileron hinge. Will probably use just the skin as a template.