The only scale color options, that I'm aware of, for the EIII/AII are grey, dark green, and CDL (clear doped linen) which is best done with solartex antique if you want interior structure (and wood grain) to show or solartex linen if you don't. Of course you could also opt for a totally clear transparent covering as it seems the Germans experimented with one plane covered with celluloid. Good luck seeing that in the air though!

Because I painted my markings on with latex I needed to fuel proof with polycrylic/polyurethane.