Computer???

[Vinyl]

PCPartPicker part list / Price breakdown by merchant

CPU: Intel - Core i5-7600K 3.8GHz Quad-Core Processor  ($374.00 @ 1stWave Technologies)
CPU Cooler: Cooler Master - Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler  ($67.00 @ 1stWave Technologies)
Motherboard: Asus - STRIX Z270H ATX LGA1151 Motherboard  ($258.00 @ 1stWave Technologies)
Memory: Corsair - Vengeance LPX 16GB (2 x 8GB) DDR4-3000 Memory  ($259.95 @ Computer Lounge)
Storage: Samsung - 850 EVO-Series 500GB 2.5" Solid State Drive  ($262.00 @ 1stWave Technologies)
Storage: Western Digital - BLACK SERIES 2TB 3.5" 7200RPM Internal Hard Drive  ($208.00 @ 1stWave Technologies)
Video Card: Asus - GeForce GTX 1070 8GB Video Card  ($729.95 @ Computer Lounge)
Case: Phanteks - Enthoo Evolv ATX Glass ATX Mid Tower Case  ($315.00 @ 1stWave Technologies)
Power Supply: EVGA - SuperNOVA G2 750W 80+ Gold Certified Fully-Modular ATX Power Supply  ($198.00 @ 1stWave Technologies)
Operating System: Microsoft - Windows 10 Home OEM 64-bit  ($163.00 @ 1stWave Technologies)
Total: $2834.90
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-05-16 20:55 NZST+1200

This is the sort of build I woudl do. Close to your 3k mark but may want to take some cheaper parts if you dont have peripherals.

Pretty standard build. i5 7600k. Overclockable. You dont need i7 unless you seriously thinking about getting into media making(videos etc)
GTX1070. Solid card. the Asus has a high clock speed as well with 8GB vRam. 1080 is overkill and expensive so unless you really want to do
4k gaming or run a HTC Vive I really wouldnt spend the money on it. Rest of its pretty standard. Sweet phanteks case that I want personally.
This has been checked for compability but Im not 100% sure so I would make sure you check your parts before buying.

What this sweet baby boy said. A 1080 Ti for a game library like yours is absolutely insane lol (exception for ARK but still)