Turns out, printing wings like this is perfect: thin enough, and still has the airfoil curve. Print lines are along the cord, so the wing is strong. The only problem is that the spar indents are not present.
done, note how I made it thicker on the ailerons. The 3D model had smaller ailerons than the real model, so the spar placement is not great, but it works for now
Adding 1 mm steel pipe as prop cube, some leftover decals from a Fokker E III as prop logos, and I don't remember what is that photo etch part coming from, but close enough
turns out the vinyl I used is too strong and peeled the paint away. Guess I have to do this all over again. I ordered some Oramask 810, as I don't trust this vinyl anymore.