K8203 extruder STL for FilaFlex

Hi everyone!

I wanted to use flexible filaments (like FilaFlex) with my K8200.
I’ve found on Thingiverse some “adapters” for the standard extruder (3mm)
But i wanted to use my K8203 extruder for that (1.75mm) and i can’t find anything about it.

I was hoping someone has the extruder’s hard plastic’s .STL files, so i can try to modify them to make a fexible filament version.

Thanks in advance!