arcadeperfect

Hi For a limited space layout I want to go with the Bandai shorty trains. If you're not aware these come as toys without proper trucks or a loco but they made conversion kits, which are all out of production now. As such they are now super expensive and not particularly good. I'm considering having a go at making my own with some CNC and 3D printing (I'm going to want a few of these) based around these rather nice Dutch coreless motors. I don't think I can build the geared trucks though. Can anyone recommend a source for geared trucks, accompanying worm gears and any other basic components I can build a chassis around? Any help much appreciated. And FWIW I will open source all the designs in case anyone else would like to try.