Next question, is it a thorough ticket, ie, is the EK metal a QF flight number flight, so you earn QF SC if you are a member of the QF FF program.
Also, if you are issued a BP at DXB for the DXB to (PER to MEL) flight, you could as mentioned go into the city, grin, tell the taxi driver you will pay him extra if he does a drive around for you if you have not been to PER before.
If EK at DXB won't issue a PER to MEL BP, you would need to either use a kiosk to check in, or check in in person, ...
Do you have luggage to be moved from the international to the domestic flight or HLO?
If you have an Australian passport, and tick no for all the boxes as no, and use Smartgate, usually they will just collect your incoming passenger card and Smartgate ticket from you. Thought in your case, they might ask you why you have done the odd routings, seeing that there are direct flights from DXB to MEL.