I'm happy for you!! I think it was the "A-Team" on TV years ago, that always said..."I love it when a plan comes together!!"
I'm originally from Adelaide, but now out from Perth for over 8 years. I KNOW all the good work opportunities are in the Eastern States, but other things factored it for me. Like cost of housing!! and travel distance!! A (cheap?) house in Sydney, costing say $800,000 where you travel say 1 + 1/2 hours or more to work/City was excessive. The same quality/style house in Adelaide would be about $300,000 to $400,000 and travel time would be typically 30 mins now! And the extra $400,000 stays in the bank!!
But we go where the need is, I understand.
Regarding 'interviews', I found it funny at times, what the interviewer wants/needs to hear. My background was in commercial/industrial electronics in private/civil companies & organizations. Once, I went for a job with a Government/Utility position, and they had their own way of talking about or referring to certain technical systems, that 'seemed' unfamiliar to me. An hour later, I said... "Oh!, you are talking about P.I.D. (Proportional, Integral, Derivative) action & controls... why didn't you say P.I.D. !!" (They had some other stupid names!). I then went on to drawing various schematics to explain it all, including various computer controlled 4-20mA systems. They were most relieved. The next day they rang to offer me the job, but had since accepted a tech job with Honeywell. (Security, Banks, Prisons, HiRise HVAC & access control systems).
Would not have chosen that later, but was very interesting!! (Another story).
I'm too old now, & medically retired and is all in the past now. Hope you have great success in your life!!