On the point of Unioners meeting Bundschuh on a Freeport; Its unlikely it would take place there. Unioners are closer to being hostile to the Zoners than anyone else, inclduing Xenos. They have attacked Freeport 2 before, if you go read the news there. So it'd be better to have it on Kreuzburg in New Berlin. Junkers are completely neutral to both parties, and would prevent a fight taking place inside their own station.
Also, seeing as how I am, to my knowledge, the only Bundschuh out there, I could take the place of the Bundschuh's diplomat, with one of the W being the Unioner's diplomat.