I was going to send you the address of the people I used to set up my offshore
company (BVI company) but really, if you just google
"Offshore Company Formation Hong Kong" you will get pages of people who do this for probably similar costs. The all make their money from recurring fees
if you ask them to maintain an office for mail and phone
calls. I just used a Central Post Office box which was forwarded to wherever I happen to be at the time for a small fee. And I am sure they will all introduce you to a bank of your choice for their standard fee of a couple of hundred dollars.
I know from the Oz perspective this may seem to be a BIG thing to organise but it is trivial really. Of course big international transactions are scrutinised for money laundering - correctly so. But the minor international income
you and I are are likely to process is hardly going to attract that sort of anxiety. Thousands of these are set up in HK every year - it is is one of the ways the HK government
maintains an income
which allows the local citizens to pay an average of 15% tax. A very desirable state of affairs for all.