Sig campaigns are good, but since primedice is done adding lower ranks you would take almost half a year to reach a point where you could join primedice again. If you can program you can make a lot as well.
They're completely full. They only hire Legendary or Donator members, if I remember correctly. It's sad, but understandable since the whole campaign grew pretty fast! Stunna simply can't pay that many people, even while being so successful!