Shop around on the internet, there are lots of people at Jandakot who can hire you aircaft. Not all of them are clubs, so you don't have to pay membership fees.
Be warned that there can be a very long delay to get overseas licence holders validated by CASA to fly here, as they need to confirm your details with the authority that issed your licence. So you need to get on to this right away, as it could take weeks.
You can email the licensing people at the Perth office, try
[email protected] to get the ball rolling.