Fisnished folding over the leading edge and getting the rib holes to line up. It was a challange at first but finally everything looks good. Riveted the first 5 holes and left the rest undone until the top skins are in place. Look at picture # 1 and you can see under the edge of the skin there is a notch cut out where the top skin locks onto position and then the leading edge skin goes over that and it riveted for a nice strong fit. Installed hinge bracket assemblies on the rear of the wing before the top skins go on.