RE: Curare dehidral
According to the plan I have, it cites 2 degrees to each side of fuselage, as measured along centerline of wing. This is not the upper or lower surface. The tailplanes are 9 degrees downward to each side of the fuselage also.
Since the ribs, shown, die cut and drawn, do not fit the lines of the intended wing very well, I went and redrew the whole plan in CAD and used the above noted angles for determining the offset near tip.
Wm.