That sucks mate.  I hate to think about it but I can see myself being in your position within the next few years.  The only way I will be able to keep going is to do fly in fly out work in the mining areas for a few years until fully set up. I definately dont like the idea of being away from my family weeks at a time but Gotta do what you gotta do.
All the best with the job searching hopefully something suitable will pop up soon