Target has quite a few big sets reduced, including:
* Lego Old Trafford 10272, $309 (https://www.target.com.au/p/lego-reg-creator-expert-old-traf...)
* Lego 1989 Batmobile 76139, $295.20 (https://www.target.com.au/p/lego-reg-dc-batman1989-batmobile...)
* Lego 1989 Batwing 76161, $199 (https://www.target.com.au/p/lego-reg-dc-comics-super-heroes-...)
* Lego Disney Mickey Mouse & Minnie Mouse 43179, $139 (https://www.target.com.au/p/lego-reg-disney-mickey-mouse-min...)
* Lego Art Harry Potter Hogwarts Crests 31201, $89 (https://www.target.com.au/p/lego-reg-art-harry-potter-trade-...)
The full list of their Lego range is here: https://www.target.com.au/c/toys/lego/W152974?sortBy=price&s...
Don't forget to sign up to their newsletter for $10 off, or redeem Flybuys points for up to $20 off.
I have had a good run with Target deliveries in the past (as in, no cancellations and no damaged deliveries) but others on OzB seem to have less luck with canceled orders so YMMV.