Anten

this will be more relevant for you:
PCPartPicker Part List
CPU: Intel Core i9-9900K 3.6 GHz 8-Core Processor  (€491.51 @ Coolmod) 
CPU Cooler: Deepcool Gammaxx L360 V2 69.34 CFM Liquid CPU Cooler  (€89.95 @ Amazon Espana) 
Motherboard: ASRock Z390 Phantom Gaming 9 ATX LGA1151 Motherboard  (€169.10 @ Amazon Espana) 
Memory: Team T-FORCE VULCAN Z 16 GB (2 x 8 GB) DDR4-3000 Memory  (€70.59 @ Amazon Espana) 
Storage: Kingston A1000 960 GB M.2-2280 NVME Solid State Drive  (€91.25 @ Amazon Espana) 
Storage: Seagate Barracuda Compute 2 TB 3.5" 7200RPM Internal Hard Drive  (€56.50 @ Coolmod) 
Video Card: PNY GeForce RTX 2080 Ti 11 GB XLR8 Gaming Overclocked Edition Video Card  (€1144.26 @ Amazon Espana) 
Case: Phanteks Eclipse P400A Digital ATX Mid Tower Case  (€89.90 @ Amazon Espana) 
Power Supply: Gigabyte AORUS P GM 750 W 80+ Gold Certified Fully Modular ATX Power Supply  (€95.60 @ Coolmod) 
Monitor: MSI Optix MAG341CQ 34.0" 3440x1440 100 Hz Monitor  (€479.00 @ Amazon Espana) 
Total: €2777.66
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2020-02-15 03:58 CET+0100

Ahhh well in that case yeah feel free to ad/change a few items. Yeah the EVGA black was fitting the $3k budget. 
 
PCPartPicker Part List Type Item Price CPU Intel Core i9-9900K 3.6 GHz 8-Core Processor $523.89 @ B&H CPU Cooler Corsair H115i RGB PLATINUM 97 CFM Liquid CPU Cooler $169.99 @ Amazon Motherboard Asus ROG STRIX Z390-E GAMING ATX LGA1151 Motherboard $238.42 @ Amazon Memory Corsair Vengeance RGB Pro 32 GB (2 x 16 GB) DDR4-3200 Memory $162.99 @ Amazon Storage HP EX920 1 TB M.2-2280 NVME Solid State Drive $129.93 @ Amazon Storage Seagate FireCuda 2 TB 2.5" 5400RPM Hybrid Internal Hard Drive $74.59 @ Amazon Video Card Asus GeForce RTX 2080 Ti 11 GB ROG Strix Gaming OC Video Card $1199.99 @ Newegg Case Phanteks Eclipse P400A Digital ATX Mid Tower Case $98.98 @ Newegg Power Supply Corsair RMx White (2018) 750 W 80+ Gold Certified Fully Modular ATX Power Supply $128.99 @ Amazon Monitor ViewSonic ELITE XG270QG 27.0" 2560x1440 165 Hz Monitor $599.99 @ Amazon   Prices include shipping, taxes, rebates, and discounts     Total $3327.76   Generated by PCPartPicker 2020-02-14 21:19 EST-0500    
 

Thanks for all the answers, it really helped a lot. all options are very attractive to me, but after some thinkings i picked the 1st as best option for my friend, not because the others are worse, i personally would pick the 2nd or 3rd since it has stronger perfomance, but since my friend is a rookie on PC and she's a casual player instead of a hardcore player like me (at least atm), i picked the safest option for her cuz it has better support in case anything is not working, so she can fix it without having to worry so much, and yeah ty again for all the help, we really appreciate it ❤️

Thanks for all the answers, it really helped a lot. all options are very attractive to me, but after some thinkings i picked the 1st as best option for my friend, not because the others are worse, i personally would pick the 2nd or 3rd since it has stronger perfomance, but since my friend is a rookie on PC and she's a casual player instead of a hardcore player like me (at least atm), i picked the safest option for her cuz it has better support in case anything is not working, so she can fix it without having to worry so much, and yeah ty again for all the help, we really appreciate it ❤️