Sorry that I can't help you, Hedge. Please note the AD is actually Learmonth.
Unless your going to the strip 10 mile up the road known as
Exmouth. In any case, I got the impression that you're flying into Perth and going by road to Exmouth. In which case, your best bet would be finding a lightie pilot on Whale Shark spotting or tourist runs that would be operating out of Exmouth or Coral Bay to lend you a tent.