Danm90

for that you need a gpu with hdmi 2.1 so you should wait for next gen graphics this september
since the tvs don't have a display port
 

I doubt it.  Clearance and fit Kent usually have to do with air coolers which you don’t have.  There is only one place to put the radiator which is in front though.

PCPartPicker Part List Type Item Price CPU AMD Ryzen 9 3900X 3.8 GHz 12-Core Processor £406.00 @ Amazon UK CPU Cooler ARCTIC Freezer 34 eSports DUO CPU Cooler £49.08 @ Alza Motherboard Asus PRIME X570-P ATX AM4 Motherboard £172.40 @ Alza Memory Patriot Viper Steel 16 GB (2 x 8 GB) DDR4-3733 Memory £99.99 @ Amazon UK Storage Silicon Power 1 TB M.2-2280 NVME Solid State Drive £161.38 @ Newegg UK Storage Seagate Barracuda Compute 2 TB 3.5" 7200RPM Internal Hard Drive £54.78 @ Aria PC Video Card Gigabyte GeForce RTX 2080 SUPER 8 GB WINDFORCE OC Video Card £689.92 @ More Computers Case Corsair iCUE 220T RGB Airflow ATX Mid Tower Case £85.73 @ Amazon UK Power Supply Xilence Performance X 550 W 80+ Gold Certified ATX Power Supply £78.44 @ Amazon UK   Prices include shipping, taxes, rebates, and discounts     Total £1797.72   Generated by PCPartPicker 2020-05-24 16:04 BST+0100   ryzen 9 3900x perform identically with 9900k. but it has 4 more cores and 8 more threads.
that cpu cooler will be good enough for that cpu, same with the motherboard.
for gaming 16gigs of ram is good.
with the savings from cpu you can afford rtx 2080 super.
better airflow case.
no need ofr that high wattage. that system consumes under 450w anyway on 100% stress (harddrivers, cpu, case fans, gpu, ram)