Oldtyme, the sheeting was simple, but I did it only because I planned to use a fabric covering rather than plastic, and wanted a solid torque box that comes with D wing construction. I like the looks of it too, but it does add weight, which is not what many like to do. It's been 8-9 years since I did that sheeting, but I'll try to remember as best I can (getting harder the older I get!!).

I used the same thickness sheet that BTE uses around the center wing area. It was a simple matter of trimming that thickness from the ribs between the main spar and leading edge (before rib assembly, of course). I believe there is a stringer that needs to be inset further into the ribs as well. The curves are gentle, so the sheeting bends easy by moistening the outer side. I sheeted one side while the wing frame was still pinned to the board, then flipped it over, repinned the wing to the board, and sheeted the other side. If I recall correctly, a portion of the bottom sheeting, at the centerline, needs to remain off until after you have mostly completed the fuselage, and match drilled the forward wing dowels. As you can see from the pictures in the first post, the sheeting butts up to and is flush with the main spar cap. It also butts against the existing leading edge stock (not overlaps it). That's about all there is to it. Good luck!