Hello to all

I'm not sure if i have posted this in the right place or not.I'm not even sure if anyone can help but i had to try
We are relocating to Perth and i'm trying to find accommodation untill we find a rental.So far all the fully furnished hoilday homes and short term rentals are out of our price range $500 to $600 a week( we onley want to pay $300 to $350).
Does anyone know of anywhere cheaper
I have even tried a campground but the cabins are $85(for two) a nite..YIKES.
Anyway i'm hoping someone might have some ideas or know of anywhere else

Thanks everyone!