Thank you, that gives me something to work with. Would you make the wing ribs that the sockets go through (with the exception of the root rib) out of plywood? A 1/32 piece of aluminum is going to be quite flexible, is this just to prevent tear-out of the rods? Would I laminate this to the plywood that the cabin area is being made of, then fiberglass over that? Also, would using fiberglass on the wing roots prevent me from using silkspan and dope on the wing? I was going to try to keep it true to the original with a fabric covered wing.