Hi JP, I'm not a big coder so I make my drawings in ilustrator or inkscape. This I then with a CAM (in my case Aspire) in Gcode around which then from the Raspberry by Gcodeseder to the Arduino Nano with Grbl as machine control are sent. For Inscape, there are some plugins for something like that.
It would be easiest if you look for a Makerspace or Fablab in your proximity. A lot of CNC milling machines and lasercuters can be used for a small fee. In principle I could of course the parts for you milling but I have at the moment simply too little time.