I'm currently looking into working with someone else to produce a complete kit with etch brass details and interior, as well as bogies. I don't have any time scales for such an endeavor at the moment.
It was my intention to use Roco bogies when I originally designed the model, the type found under the Austrian narrow gauge coaches.
WSF polished would result in a lot of the detail being removed, it would also require a lot more clean up as the polishing wouldn't get into the gaps between the ribs. Many details would also need to be made .7mm thick rather than the .3mm minimum thickness of the detail materials.