I have a design for the Pitts Model 12 wings which are very similar to the Skybolt. What I don't have is the sizes of the spars for the Skybolt. I have their locations at 6-5/16" aft of the LE for the front spar centerline and 23-1/8" between the spars. The airfoils should be 632A-015 for the upper wing and 0012 for the lower wing. If someone could post the spar dimensions I can see if one drawing for both airplanes is possible,,,, and I can make the drawing and post it here.