As mentioned, practical considerations come in to play but so far I only see your German embassy building so far. Does this mean a highly fictional campaign set within the Boxer Rebellion rather than the fighting for the legations? Or perhaps there is a limited set of options in the 3D printing world? Doesn't really matter in the end, just curious after a quick review of the full thread and not seeing any other legation related buildings.
Look forward to hearing about how your games go.