I did a bit of googling - the party bags are a Nordstrom exclusive, so possibly Myer OR David Jones will pick it up. Certainly not both, if Patternmaker was anything to go by. Again, late October or early November.
Myer Chadstone in Melbourne stocked them as of this Monday. I didn't ask the price, but it was probably something unreasonable Brush sets are $110, and the eye palettes are $85, so somewhere in between there, I'd guess.
brisbane has them in too.
Im thinking of getting the warm one. I do like the cool, but I already have rose pigment and the glitter liner isnt what I expected