RC Plane tail wheel hinge

I wanted to upgrade my 1200mm wingspan Depron Piper Cub with a steerable tail wheel. The idea was to introduce as little force as possible into the rudder. The hinge is only glued to the fuselage, not to the rudder.
I drilled the hinge with a 2mm drill needle so that the 1.5 mm wire fits in with sufficient play.
The wire is both hinge bolt and wheel wire. It is bent 180° at the top and inserted into the small hole. The lower edge of the hinge must at last be adapted to the shape of the rudder