I'm afraid there is no shop nearby.
Looking on the internet I found
https://www.bintel.com.au/perth-telescopes-australia/
but they don't have a branch in Perth.
Other options are
Teleskop Express in Germany, they ship to Australia and are rather affordable, despite the recently risen euro exchange rate (now A$1.50). Importing is
free under A$1000.
Another German seller has an Australian branch:
https://myastroshop.com.au/