Alienware R11 PC + 27" Monitor & Accessories - Core i7 10700KF 16GB RAM 512GB SSD 2TB HDD RTX 3080 $3,231.00 Delivered @ Dell

Came across this R11, with the 3080 and use LOVEKEANU discount code you can pick it up for $3,231.00
Also use that Cashrewards for an extra 6% cash back (excl. GST). Potentially less if components are itemized.
Edit: I just bought this setup and cashrewards has tracked it as $88.12 (so total $3,142.88), seems others are getting higher CR tracked figures around $170.
(slightly cheaper than $3254.08 the last one I posted, but now with screen and other accessories) https://www.ozbargain.com.au/node/616191

You could definitely play around with this or potentially add components (check your warranty etc)

Processor
10th Gen Intel® Core™ i7 10700KF (8-Core, 16MB Cache, 3.8GHz to 5.1GHz w/Turbo Boost Max 3.0)
Operating System
Windows 10 Home, 64-bit, English
Video Card
NVIDIA® GeForce RTX™ 3080 10GB GDDR6X
Memory
16GB Dual Channel DDR4 XMP at 3200MHz; up to 128GB (additional memory sold separately)
Hard Drive
512GB M.2 PCIe NVMe SSD (Boot) + 2TB 7200RPM SATA 6Gb/s (Storage)
Dell Services:Hardware Support
1Y Mail-in Pre-Paid Freight Service
Dell Services:Extended Service
1Yr Premium Support and Onsite Service

I'm no parts guru, but these might be comparable? And that's without build cost and Dell warranty.

PCPartPicker Part List: https://au.pcpartpicker.com/list/khdQ2V

CPU: Intel Core i7-10700KF 3.8 GHz 8-Core Processor ($399.00 @ Centre Com)
CPU Cooler: Cooler Master MASTERLIQUID ML120L RGB V2 65.59 CFM Liquid CPU Cooler ($75.00 @ Amazon Australia)
Motherboard: Asus TUF GAMING B560M-PLUS WIFI Micro ATX LGA1200 Motherboard ($264.00 @ PC Byte)
Memory: G.Skill Ripjaws V Series 16 GB (2 x 8 GB) DDR4-3200 CL16 Memory ($115.00 @ Scorptec)
Storage: Samsung 970 Evo 500 GB M.2-2280 NVME Solid State Drive ($109.00 @ Computer Alliance)
Storage: Seagate Barracuda Compute 2 TB 3.5" 7200RPM Internal Hard Drive ($74.00 @ Centre Com)
Video Card: Estimate $2400 in current market
Case: Fractal Design Meshify C Mini MicroATX Mini Tower Case ($141.90 @ Newegg Australia)
Power Supply: SeaSonic FOCUS Plus Gold 1000 W 80+ Gold Certified Fully Modular ATX Power Supply ($279.00 @ PCCaseGear)

Total: $3856.90

However this also includes;
Dell Alienware 27 Monitor - AW2720HF maybe get this for $400-$600 in a rush
on dell site $584.34 https://deals.dell.com/en-au/productdetail/8l3w
Alienware 510M Gaming Mouse - AW510M; $69.75 https://deals.dell.com/en-au/productdetail/8jos
Alienware 510H 7.1 Gaming Headset AW510H - Dark Side of the Moon; $94.95 on https://deals.dell.com/en-au/productdetail/8joc
Alienware 510K Low-Profile RGB Mechanical Gaming Keyboard (US English) AW510K- Dark Side of the Moon - as low as $149 on ebay.com.au
Lunar versions $173.25 on https://deals.dell.com/en-au/productdetail/8jp6
Questionably another $500 or more in value

If you take dell's pricing (with a Lunar keyboard instead), the extras comes to $922.29.