I would agree with @boggy77 above. If you don't need the 12 cores and want to save a bit of cash, go for this:
PCPartPicker Part List: https://pcpartpicker.com/list/n8M6wh
CPU: AMD Ryzen 5 3600 3.6 GHz 6-Core Processor ($171.89 @ Amazon)
CPU Cooler: Cooler Master Hyper 212 Black Edition 42 CFM CPU Cooler ($35.99 @ B&H)
Motherboard: MSI B550-A PRO ATX AM4 Motherboard ($139.99 @ B&H)
Memory: G.Skill Ripjaws V Series 32 GB (2 x 16 GB) DDR4-3200 CL16 Memory ($114.99 @ Newegg)
Storage: Crucial P1 1 TB M.2-2280 NVME Solid State Drive ($104.99 @ B&H)
Video Card: EVGA GeForce RTX 2080 SUPER 8 GB BLACK GAMING Video Card ($719.99 @ Walmart)
Case: Phanteks Eclipse P400A Digital ATX Mid Tower Case ($89.99 @ Amazon)
Power Supply: Corsair RMx (2018) 650 W 80+ Gold Certified Fully Modular ATX Power Supply ($125.99 @ Best Buy)
Total: $1503.82
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2020-07-16 09:37 EDT-0400
I definitely think you're better building your own, and it's really not as daunting as it may seem so long as you do your research.
I would also recommend waiting a couple of months for the new GPU launches if possible. With a high budget like yours, it is quite likely there may be some good new options
with that budget you can do much much better
PCPartPicker Part List
Type
Item
Price
CPU
AMD Ryzen 9 3900X 3.8 GHz 12-Core Processor
$389.99 @ Amazon
CPU Cooler
Noctua NH-D15 CHROMAX.BLACK 82.52 CFM CPU Cooler
$99.95 @ Amazon
Motherboard
Gigabyte B550M AORUS PRO Micro ATX AM4 Motherboard
$129.00 @ Best Buy
Memory
Team T-FORCE VULCAN Z 32 GB (2 x 16 GB) DDR4-3200 CL16 Memory
$99.99 @ Newegg
Storage
Team MP34 1 TB M.2-2280 NVME Solid State Drive
$126.99 @ Amazon
Video Card
NVIDIA GeForce RTX 2080 SUPER 8 GB Video Card
$699.99 @ Best Buy
Case
Fractal Design Focus G Mini MicroATX Mini Tower Case
$54.99 @ Walmart
Power Supply
Gigabyte 750 W 80+ Gold Certified Semi-modular ATX Power Supply
$94.99 @ Newegg
Prices include shipping, taxes, rebates, and discounts
Total
$1695.89
Generated by PCPartPicker 2020-07-16 09:34 EDT-0400