Hi there, my ACT Settlement Officer has been very responsive and helpful, PM me if you would like to write to her for clarification. In my opinion I believe it is fine, as long as your permanent address is in the ACT and if you have children, that they attend a school within the state.
Congrats on finding a job even before you arrive! May I ask which industry you are in? I'm in financial services and am finding it a challenge locating possible vacancies.
Have you short listed some suburbs where you'd like to live?