I'm in a similar situation but a bit before then, so a bit off topic, but I'd be interested in people's thoughts......
We live in a (mobile) caravan, travelling around. We have a permit to leave and are proposing to go next month and return somewhere between mid-Jan and early Feb depending on whether we get bumped and how many times, then two weeks in quarantine of course. Returning to Sydney. No real choice in that are some flights are award ones booked ages ago and obviously no scope to move those and the paid one is SQ in PE and they only go into Sydney in that class. In any case, I reckon we stand more chance of getting into Sydney than anywhere else.
We were booked to leave from Sydney next month, the plan being to leave the van there, return and do up our Sydney unit. Now delayed due to building works to the whole block being delayed. So no specific need to be anywhere in particular when we get back.
When the Sydney situation started we nipped over the Queensland border and we are still here. I changed the flights out of Oz to Brisbane. That of course means leaving the van in Queensland (in an ideal world I'd leave it in say Ballina and then pop back to Brisbane Airport but that's not going to work). Which means getting back to it after Sydney hotel quarantine may be a problem.
What do you think is better? Leaving it here or going over the NSW border and flying say Ballina to Sydney and out of Sydney, if that's even possible in lockdown (is it?)? Any better suggestions?