Hi there,
Here are the specs we agreed on. Feel free to let me know if you'd like any changes and I can change the description written here:
 
Processor: i9-12900K
GPU: Proving your own RTX 3080 Ti
RAM: 32 GB DDR5 5600 Mhz RGB 
SSD: 1 TB M.2 gen 4 SSD
HDD: 2 TB HDD
Case: Lian Li PC-O11 Mini (Black)
RGB Fans: 10 RGB Fans with software control
Power Supply: 850W 80+ Gold SFX PSU
Custom Black (or black/any color) cables
Motherboard: Z690 MSI DDR5 motherboard
AIO: Black NZXT Z73 360 mm AIO liquid cooler with LED customizable display 
 
Features: Wifi, Windows 10 Pro, Office, lifetime warranty on all parts (except GPU because it's yours. You should have a warranty through the manufacturer for 3 years), All software and drivers installed, personal delivery, free tech support
 
Note: The picture above is not what the PC would look like (cat not included). That PC has the same case but yours will be much more powerful and better looking.