The quickest, simplest fix for this until either Taxi Galactica or Galactic Navy are updated, is to add the Sensible Sun micro-OXP. The two stations should then be spawned well apart.
That would work. It also reveals a bug in the way Taxi defines its position. It should be a station in planet orbit. But the location depends on the planet-sun distance. A distance based on planes radii seems better for an orbiting station.
Probably it should use the positioning of the secCom station but a bit out of the centre:
Ah the code that Ahruman has posted above seems to be a good idea. I will try this out and if it does not conflict with any other OXP I will implement it into the next release of Taxi Galactica. Thanks for that, Ahruman!