New $2,300ish PC Gaming Build Suggestions

Cheaper price and more performance

PCPartPicker part list / Price breakdown by merchant

CPU: AMD - Ryzen 7 2700X 3.7GHz 8-Core Processor ($309.90 @ SuperBiiz)
Motherboard: ASRock - Fatal1ty X470 Gaming K4 ATX AM4 Motherboard ($140.98 @ Newegg)
Memory: G.Skill - Trident Z 16GB (2 x 8GB) DDR4-3200 Memory ($164.99 @ Newegg)
Storage: Samsung - 970 Evo 250GB M.2-2280 Solid State Drive ($106.99 @ Amazon)
Storage: Seagate - Barracuda 2TB 3.5" 7200RPM Internal Hard Drive ($57.99 @ Amazon)
Video Card: MSI - GeForce GTX 1080 8GB DUKE OC Video Card ($519.99 @ B&H)
Case: Fractal Design - Define C TG ATX Mid Tower Case ($89.99 @ SuperBiiz)
Power Supply: SeaSonic - FOCUS Plus Gold 850W 80+ Gold Certified Fully-Modular ATX Power Supply ($84.99 @ Newegg)
Case Fan: Noctua - NF-P12 redux-1700 PWM 70.8 CFM 120mm Fan ($13.90 @ Amazon)
Case Fan: Noctua - NF-P12 redux-1700 PWM 70.8 CFM 120mm Fan ($13.90 @ Amazon)
Monitor: Dell - S2716DG 27.0" 2560x1440 144Hz Monitor ($452.00 @ Amazon)
Keyboard: Corsair - K55 RGB Wired Gaming Keyboard ($48.25 @ Amazon)
Mouse: Corsair - DARK CORE RGB Wireless Optical Mouse ($79.99 @ Best Buy)
Headphones: Corsair - VOID PRO RGB (Black) 7.1 Channel Headset ($89.99 @ Amazon)
Total: $2173.85
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-07-08 16:13 EDT-0400
 


Now add the price of a monitor, keyboard and mouse to the total and see if it's still less.
Furthermore, add the cost of an insurance for it too since that trash tier PSU will 100% blow it up the second that 1 year component warranty ends.
 


Better way to use the extra money needed for the 8700k and an AIO would be to get a 1080TI.
 
PCPartPicker part list / Price breakdown by merchant

CPU: AMD - Ryzen 7 2700X 3.7GHz 8-Core Processor ($309.90 @ SuperBiiz)
Motherboard: Gigabyte - X470 AORUS ULTRA GAMING ATX AM4 Motherboard ($139.99 @ Walmart)
Memory: G.Skill - Ripjaws V Series 16GB (2 x 8GB) DDR4-3000 Memory ($169.99 @ Newegg)
Storage: Samsung - 860 Evo 250GB 2.5" Solid State Drive ($78.46 @ Newegg Business)
Storage: Seagate - Barracuda 2TB 3.5" 7200RPM Internal Hard Drive ($57.99 @ Amazon)
Video Card: Gigabyte - GeForce GTX 1080 Ti 11GB OC BLACK Video Card ($724.98 @ Newegg)
Case: Fractal Design - Define C TG ATX Mid Tower Case ($89.99 @ SuperBiiz)
Power Supply: SeaSonic - FOCUS Plus Gold 850W 80+ Gold Certified Fully-Modular ATX Power Supply ($84.99 @ Newegg)
Case Fan: Corsair - ML120 Pro 75.0 CFM 120mm Fan ($24.53 @ OutletPC)
Case Fan: Corsair - ML120 Pro 75.0 CFM 120mm Fan ($24.53 @ OutletPC)
Monitor: Dell - S2716DG 27.0" 2560x1440 144Hz Monitor ($452.00 @ Amazon)
Keyboard: Corsair - K55 RGB Wired Gaming Keyboard ($48.25 @ Amazon)
Mouse: Corsair - DARK CORE RGB Wireless Optical Mouse ($79.99 @ Best Buy)
Headphones: Corsair - VOID PRO RGB (Black) 7.1 Channel Headset ($89.99 @ Amazon)
Total: $2375.58
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-07-08 17:09 EDT-0400

Like this.
 
Here is the list:

PCPartPicker part list / Price breakdown by merchant

CPU: Intel - Core i7-8700K 3.7GHz 6-Core Processor ($347.99 @ Amazon)
CPU Cooler: Corsair - H100i v2 70.7 CFM Liquid CPU Cooler ($94.99 @ Newegg)
Motherboard: Asus - TUF Z370 Plus Gaming ATX LGA1151 Motherboard ($137.90 @ OutletPC)
Memory: Corsair - Vengeance LPX 16GB (2 x 8GB) DDR4-2400 Memory ($149.99 @ Amazon)
Storage: Crucial - MX500 500GB M.2-2280 Solid State Drive ($109.89 @ OutletPC)
Storage: Seagate - Barracuda 2TB 3.5" 7200RPM Internal Hard Drive ($57.99 @ Amazon)
Video Card: Gigabyte - GeForce GTX 1080 Ti 11GB OC BLACK Video Card ($724.98 @ Newegg)
Case: Phanteks - Enthoo Pro ATX Full Tower Case ($90.35 @ Newegg)
Power Supply: EVGA - SuperNOVA G3 750W 80+ Gold Certified Fully-Modular ATX Power Supply ($59.99 @ B&H)
Monitor: Dell - S2716DG 27.0" 2560x1440 144Hz Monitor ($452.00 @ Amazon)
Keyboard: Logitech - G910 Orion Spark Wired Gaming Keyboard ($84.99 @ Dell Small Business)
Mouse: Logitech - G502 Proteus Spectrum Wired Optical Mouse ($49.99 @ Newegg)
Headphones: Logitech - G430 7.1 Channel Headset ($38.68 @ Walmart)
Total: $2399.73
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-07-09 03:14 EDT-0400