In my view, this price should first technically go down with respect to fundamentals. So, if we see no change in the cash rate and interest rate of AUD remains @ 1.5%, in that case AUD/USD should technically go down first. I would say like 50pips.
So it's a x100 trade (25% risk trade) as currently price trading around the 61.8 fib ratio==she will attract sellers==hence next choppy wave looks :).
Sell @ market @ 0.7584
TP @ 0.7500
SL @ 0.7684
Later i expect a point formation around 0.7477 for that you can use x50 (12% risk)
for long @ 0.7477 with a SL of 0.7277 and TP of 0.7677. However that will later depend on U.S interest rate decision on 21st of September :)