I primed and painted the interior face of the aft top skin (sorry, no photo) and made it ready to be riveted to the fuselage:
I was able to drive all the rivets along the top side by myself, but I need Mary's help to get the aft edge and longerons since I can't reach both sides at the same time. She has a bunch of tests to study for this week, though, so I must be patient.
You can also just barely see in the above photo the area where I doubled the number of rivets along the forward portion of both side stringers, to hide a stupid mistake I made when fitting the skin. Now that the rivets are in for good, it looks almost like it was designed that way – barring one or two rivets that are just barely not in line with the others, although you have to look really close to notice it.