WOW! Outstanding work Paul!
You are the master of the printed tissue process. That looks fantastic and adds almost no weight.
How is the CG position looking ? Looks like you have plenty of room to move the battery around if necessary.
Off topic, but I built the Starship Enterprise out of dollar store foam from your plans. The thing is a hoot! It flies kind of wierd with the low aspect wing but that's to be expected. I had trouble getting the printed tissue to stick to the foam, it's kind of wrinkly, but so am I.
Guys at the field kid me about a foam model but I tell them hey, at least it's a scale model.