I'm a big fan of SLOP. 1nm right on the Airbus.
However be careful with Australia. Outside of 200nm off the coast there is no need for ATC approval but inside that area you must have ATC clearance and the Australians can be a bit touchy when it comes to things not being done there way. (Before you aussies have a go, I'm an aussie, ex GA, Skywest and Ansett 95-01, so I'm entitled to comment.)