We developed our own schedule (and posted it on BB somewhere...) and did exactly what Yeddi suggests. No one can give you the answers about which vax to get or not get and when, because each family is different.

FYI, we decided against getting the Infanrix Hexa (which has 6 vax) and instead chose the Infanrix IPV, which only has 4 (whooping cough, diptheria, tetanus & polio). We had to pay for the Infanrix IPV but it's only about $40 a dose. You have to ask for it specifically, but we had no issues with getting something different from the Schedule.

Oh, and the Schedule is the same all over Australia, it's a federal government thing, not State-based.

ETA: My thread with our custom-made delayed schedule (which is on page 2) is HERE