Can I get a rent in Darwin?!

I am immigrating next month to Darwin from South Korea finding it difficult to rent a unit or apartment without inspection procedure. Every real estate agent I contacted shows no interest by sending an automated email to register an inspection.I tried to secure a rent by making a contract online and sending deposit and rent before I come to Darwin. After a number of trials, I gave up and booked a motel for a week instead. I can prove a sufficient bank statement as soon as I make it but I have no refrees or job offer yet. Can anyone give me tips to convince a landlord and agent? In Sydney, some people pay 6 month rents upfront. Is Darwin in the same position? Is that the best and only way?