Hello,
I've just got back from Australia after working there for a year. I worked on a working holiday visa and also on a tourist visa as most establishments don't check.
There are lots of big brothels in Sydney and Melbourne. Melbourne has more regulations in place, ie. Brothels can't serve alcohol to clients.
There were clinics in Sydney and Melbourne that will test you and give you the certificate you need to work for free, without needing to see any ID or for you to have health insurance. These are good if you are on a tourist visa.
In Sydney, working 3/4 days a week I would hope to make between $2-3000 a week. I'm a bit lazy and didn't put the long hours in, in the brothels. In Sydney brothels there seems to be a lot of party bookings. Some weeks would be slow, with a lot of girls working. I've never worked in England but some nights there could be 20+ girls on the floor and only a handful of clients actually coming in.
I would probably say the Melbourne brothels I worked at were busier.
Cost of living out there is high, for a private room in a hostel I paid $1000 a month, sharing with a friend. I have seen people rent their own rooms in apartments for $300 a week.
I also did private work, charging from between $300-500 an hour. I advertised on Locanto and also found a lot of clients on Seeking Arrangement; most guys just wanted an escort and are willing to pay good prices.
I have seen escorts advertise on websites Scarlett Blue and Private girls. These girls had lovely photos and were charging $600+ an hour.
I did incalls in cheaper hotels in Sydney, you can find decent hotels that charge around $120 a night.
Hope this helps anyone!