Cut the paper template and marked out on the 1/4" plywood sheet. Used the first rib as a templat for the following 3 and then bolted together to sand equally.
Forsner bits created the lightening holes.
Turns out when holding the end ribs up against the wing ribs, they were about 1/16" high so I just sanded down to the the contour of the wing ribs for a perfect profile. Most likely the scaling on the printed template.
