Decided to have a browse of the Bing Lee website after seeing FatPenguin's (now expired) Logitech MX Master 3 post and spotted this deal for the Logitech MK850 Performance wireless keyboard & mouse Combo, which is also discounted as part of the current AfterPay Day 30% off sale.
At $90.30 (on checkout with AfterPay) plus an upsized cashback of 2.8% from ShopBack (tracks as $2.30), I believe this is an all-time low for a what is a capable wireless keyboard and mouse combo with multi-device support via Unifying receiver or Bluetooth.
See Logitech's MK850 product page here for product images and full specifications.
See here for details about AfterPay.
Thanks and enjoy!
Do not recommend, mouse lasted only 18 months before it started randomly double-clicking.