Something that should be done to any ARF/ARC with adjustable leadouts is to soak the wood with CA to harden/strengthen it....otherwise the bolt and washer will pull through....causing a lot of annoyance.
I suggest using Minwax mineral based satin finish Urethane to seal the film......paint all of the seams...otherwise the covering will come off after a little exposure to rain....or even Windex, if you're so inclined.
Use the poly to seal the engine/tank compartment as well...
There is more info on the GSCB web site.