My compilation from black Friday sale yesterday, total $1721.05 (excl storage)
i5 11400 is between ryzen 3600 and 5600x performance wise, and much cheaper than 5600x. And much better than 10400/F being used by other prebuild deals.
Further discount with ebay/amazon gc with shopback.
This works out cheaper than the other prebuild deal on similar spec. https://www.ozbargain.com.au/node/665775
CPU: Intel i5 11400 ~ $230
Cooler: Cooler Master MasterLiquid ML120R ARGB AIO ~ $59
Motherboard: ASUS S1200 MicroATX TUF GAMING B560M-PLUS ~ $149
Memory: Crucial Ballistix 2x8GB DDR4 3200MT/s ~ $82.06
GPU: MSI GEFORCE RTX 3060 Ti VENTUS ~ $999
Case: Corsair 4000D Airflow Tempered Glass Mid-Tower ATX ~ $102
PSU: EVGA SuperNOVA GA Series 750W 80+ Gold ~ $99.99
Galax 3060 Ti still available at $1099
Considering the case is not limited in space (ie not small form factor), I'd recommend you/others considering to go for an air cooler, which will last longer and can perform just as well as an AIO.
I just came off the AIO boat recently after one in an ITX build for ~5 years died (of course, just after warranty period). The replacing air cooler performs just as well and ran quiet (or quieter towards the end when the AIO had heaps of rattling). The air cooler practically have no limit of lifespan as long as there's compatibility on the socket (so less waste), and can follow your upgrades in the future.