I worked some on the intake side of things today, here you see the intake as originally made, and on the opposite side the balsa ducting I made out of 1/16 balsa sheet, then coated with resin to strengthen and smooth the surface some... will sand and paint this after it cures out.

I realize this isn't a full intake duct system, but more of an air scoop without any hard obstructions, I think this is a fair compromise for this airframe.