Oh, don't worry, I'd create my own wing structure ... suitably stiff.

I should have made myself more clear; when I said that I want authenticity, I meant "authenticity of outline, rather then of internal structure.

I'm anticipating a model of around 96", with two-piece wings and a decent four-stroke in the nose (Enya 1.20R, most likely).

On reflection, I can probably answer my own question. I mean, I know that glider-guiders use R/E in conjunction with flaps, so it shouldn't really prove to be problematic in this case.