I started the day by bolting the Z-brackets to the right spar.
I got the fuel tank skin and leading edge skin lined-up. I drilled the inboard Z-bracket.
The skin was removed to the and the other Z-brackets were drilled.
I got the fuel tank ribs installed and matched drilled.
I re-installed the skin with clecoes. Everything is aligned and looking very good.
Lastly, I drilled the leading edge joiner plate.
The result of some hard work: