@kdobson83 I do not have a 3d printer and I am trying with minimum cost to build decent RC airplanes. Your proposal is very good and sometime I will give it a try. I found at a local hardware store steel rods with various thicknesses and probably I will use 1-1,5mm for pushrods. The most difficult material to find here in Greece is 1,5mm and 3mm plywood. Everyone has from 4mm and above.
@sprzout Thanks for the clarifications. When the build will be at this point, I will post some pics.