Came across this great product for antenna building for UAV's. Adhesive backed copper foil 5 mm wide. Great for creating your own dipoles, vee's or helix, easily soldered. Attach it to fiberglass or plexiglass or directly to the foam (prepped with acrylic spray to help adhesion or just taped over with package tape). Create dipoles or vee's directly on you wings (not over your carbon fiber spars though).
This is available at Sparkfun. https://www.sparkfun.com/products/10561 $2.95 for 50 feet