I'm not fond of the name but as a summing up of the whole concept that is difficult to beat.
Again I don't like the name of the aliens, but again this would appear to sum up the situation perfectly.
The names were just random ideas that popped into my head, they are just in as placeholders until something else was settled on.
Cimmerian Cluster also works for me. I thought with four systems so close together they would be called Alpha/Beta/etc Cimmerian (or the other way round).
I also really like the idea of Halfway Station, it does make sense to have something out there. I would say nothing bigger than a K-Class, just to make the region feel a little more sparsely populated.