If the intention is for them to be on the open market, how about moving them to Heisenberg, a freelancer research station within the same system - a perfect place with the lore background and the docking opportunities?
Having them on a faction base (intentional or not) doesn't make that much sense.
All the sell points should be reviewed so that they are one per region/faction. IMO there's too many right now. No need to sell them on 10 different bases in Rheinland when they could just be available at a single MND base and Heisenberg.