I'm building a MiMi DLG, and the plan has sanding templates for the airfoil. I tried it for the first time, and it worked very well in getting an accurate airfoil. The wood Apogee plan on the Charles River website has a semielliptical wing that was very difficult to shape accurately. I think if you went with a 4 panel design, like the MiMi, or a miniature version of the Super Gee, it would be much easier.
Here is the build thread: