Perth would be interesting PAF. I'm not fully conversant with their equipment list, but the fact that they're pretty ancient -200s together with some unsubstantiated scuttlebutt I've heard suggests that they might not be all that suited for syd-per. It's a fair hike - ETOPs requirements & all that stuff. Someone even said to me they're not RVSM approved, though I take that with a grain of salt for the time being.