Awards via Asia are easier to get though you may have to book with an agent and pay the fee. In checking for availability you may also have to do a separate search for the Canada-Asia flights, then match these up with the Asia-Australia flights. Booking this routing can also be done in one step as you don't have to be concerned about booking 330 days out twice (outbound/return). Just wait until August and then play around with dates and routings for July 2012. You may also find it easier to fly into/out of PER instead of SYD, then use a separate award on NZ to fly between PER and SYD via AKL.