I riveted the right cap strip in place. Doing this many pop rivets in a row with a hand pop-riveter is a killer on the hands and forearms. I really wish I had purchased a pneumatic pop-riveter near the beginning of the project. There are probably not enough remaining pop rivets left on the plane to justify purchasing one now though.
Here’s a closeup of the forward armrest support.
And here’s the aft armrest support for the right side. I installed this with solid rivets since I had access to the back side.
