Was just browsing the Intelligent Homes website and noticed their Sonos Arc, Sub and Surrounds kit was marked well below Sonos' RRP of $3176 meaning you save 18% ($577.00). Sonos' product listing and price available here https://www.sonos.com/en-au/shop/surround-set-arc-sub-one-sl
These guys are located in Perth and their website mentions pickup from their location. Unfortunately they're closed weekends so I cannot call to confirm if they offer delivery or not.
Yeah except all Sonos products increased in price by at least 10% across the board in October 2021 due to the covid chip shortages.
So no way you’ll be getting those prices again now.