Target has 20% off Lego Star Wars with May the 4th promotion (not sure when it's ending). Not many available but whatever left seems to be reasonable price.
It becomes a better deal if u pair it with Cashrewards 20% cashback (until tomorrow):
https://www.ozbargain.com.au/node/699121
($30 cap per transaction, so u might want to split ur purchases)
Some of the example (price after 20% off but before cashback):
I've been waiting for the dagobah set but sadly supplies have been limited Aus wide.