SInce CX doesn't fly NAmerica to HNL, travel on that carrier alone is not possible. You'd have to get a oneworld multi-carrier award and CX will have to start flying HNL-HKG. In that case, you could take AA to HNL, do a stopover, then continue on to HKG and onward to SYD or wherever in Australia CX still flies. But since CX is not flying to/from HNL, none of this really matters.