[dcb]

you might think about some organic building materials/methods, I thought there were some japanese ww2 planes made from bamboo and silk, non structural compund curves are pretty easy in paper mache, I don't know the environmental impact of white glue but it works as fuelproofing in model airplanes as well as a good binder and is dirt cheap. Just thinking out loud here, I'm sure there a million options though some associated learning curve/trial and error.

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