Riveted leading edge to front spar, all rivets, leading edge ribs and skin. Installed fuel tank on front spar and leading edge, placed screws in every other hole and about half of bolts in tank brackets. Clecoed top inner and outer skins. Made final preparations to rivet skins onto the skeleton. Put tape on holes of inboard skin where root fairing will go so those rivets do not get installed now. Checked fit of skins, and scarf joint. OK.