Ripstop can be applied as stated with WBP. I've been hearing good things about using Icarex which is a nylon fabric covered with polycarbonate. It is stiff like paper. To apply it you spray the fabric and the wing with 3m-77. If you have the new fromula 77 you have to apply it very carefully to the foam as it has solvents now that will attach foam. If you spray from a distance in light coats the solvent evaporates before it hits the foam. Practice on scraps first! Then you iron on the fabric pretty much like monokote. www.hangemhigh has it. I'm not sure if the URL is right or not. A light coat of WBP to seal it 100% is recommended.

If you want to purchase CNC cut wing panels I can help you out. They can have the slots for wing spars and LE rods precut.

www.hattrickrc.com