After getting the right wing put together, I decided to get the aileron designed and built before going on with the left wing. I could get pretty close to the scale aileron outlines. just a touch larger, and route my torque rods as you see in the photo.

Then I cut the TE with a razor saw, and the ribs with a razor blade. Then I fit a piece of 1/4 square balsa which will accept the Robart hinge points.

Finally I used the cut off TE and ribs to make up the aileron.