I remember the Vagrant Raiders and enjoyed interacting with them, but I want to make a comment which has more to do with one small aspect of this (only indirectly linked to this particular proposal): Kansas. I really don't like that it's become rather populated in the last years, because the remote and mysterious atmosphere of the system, looking for the way to the shrine, and finally finding it was something really cool when it was first introduced as a remote and rather hidden system. When Kansas become more populated and also closer to Liberty, it really didn't make sense anymore that the LSF and LN don't have their hands all over the alien jump gate. Hopefully an Outcast-allied nomad friendly faction can help restore some realism by depopulating they system of nomad/oracle enemies. I would also prefer if you were based closer to Malta and not at the edge of the Outcast ZO.
edit: also, I' keep the name Vagrant Raiders rather than call it Natio Octavarium.