Got the j stiffener installed and the inboard bracket and rib in one session today. Left tank almost to same point as right tank.
8/20: started looking at the fuel sender. Bent the wire for the float, but went to measure the resistance and noted that there is a dead spot at the bottom of the range. I'll need to call Van's to get a new one.
8/23: Figured out the problem with my fuel sender - multi-meter user error. Got both sending units prosealed and screwed in place. Used stainless hex screws with the thought that it might be easier to remove them in the future if ever needed. Installed the remaining AN fitting in each tank and capped the fuel return lines for now.