Hi Nanock! I use to work for EAA based out of Syd for 4 1/2 years (left over 2 years ago) and absolutely loved it!! Its also a great stepping stone into other airlines (im soon about to start with EK) as the training you are provided with is invaluable! Dont know what the interviews are like these days, but I can tell you they definately have a base in MEL (and BNE), Best of luck!
Cheers