My friend Chuck came over this morning to help me finish riveting the last row of flush rivets that attach the Outboard Leading Edge to the left wing spar. We used the same techniques as before, with the root-half of the wing clamped and cantilevered on one worktable, with the OBLE hanging down off the unsupported side while we riveted. After those were riveted, we rolled the wing on its side and now supported it by two worktables while we screwed on the fuel tank. With that done, we carried the left wing over to the wing cart for storage. With both sides of the wing cart now occupied, this unfortunately means my cats won't be able to sleep in the empty side anymore. I also spent a little more than an hour installing the wiring harnesses for the wing tip lighting, landing lights, ADHRS, and autopilot servo. Unfortunately I discovered that one of the wires pulled out of its solder sleeve, and another pulled out of the crimped pin, so I'll have to look into fixing those wires later after I order the necessary parts (new pins and maybe a new solder sleeve). Then I spent another couple of hours scuffing, deburring, and dimpling the aileron and flap gap seals, and the J-channel stiffener for one of the wings. The flap gap seals have an extra angle stiffener that had to also be cut, deburred, and dimpled. I had to look up some other online builder photos to confirm which direction those stiffeners had to oriented and dimpled since the pictures in the instructions were not entirely clear to me, but I think I have that figured out. What's next: Clean and prime these gap seals, and then rivet them onto both wings.