Personally, if you have a job lined up and it's definite, You sound like you only have a month to survive with no income ( maybe 2, if you get paid after you work the first month) then I would go for it and stick to your plans. I would save up what you can now, really cut back and i bet you will be surprised what you can save before you leave if you are still earning. Then on arrival, you would have to be strict and not on holiday mode, make packed lunches when you head out for the day, shop sensibly. If you are not acting like tourists, then your outgoings should only be food and transport etc.
I think you need more cash behind you on arrival, personally when there are no jobs. As in our situation, we came over with a bit of spare cash, but it won''t last forever. My husband has never been to Oz before, so the temptation has been to sight see, but we have done very minimal stuff unless it's free.
I think if you are money savy you can do it. But that is without knowing what exactly you have got. Would you be prepared to use your credit cards for the short term?
re your house dilema, I can't comment on that front, never owned. maybe rent for while???
Just seems a shame if you can't commit now.
Lauren