Rate my build.

Solution
Z270 chipset motherboard at least.
DDR4-3200MHz ram kit at least.
[strike]You'll need to pick up a 650W PSU at the least of a reliable build/quality.[/strike]

In short, that's a constricted build! You could use some fine tuning. What sort of a budget are we looking at?

Lutfij

Titan
Moderator
Z270 chipset motherboard at least.
DDR4-3200MHz ram kit at least.
[strike]You'll need to pick up a 650W PSU at the least of a reliable build/quality.[/strike]

In short, that's a constricted build! You could use some fine tuning. What sort of a budget are we looking at?
 
Solution
Have a look at this :

PCPartPicker part list / Price breakdown by merchant

CPU: Intel - Core i7-8700K 3.7GHz 6-Core Processor ($405.98 @ Newegg)
CPU Cooler: Scythe - Mugen 5 Rev. B 51.2 CFM CPU Cooler ($47.99 @ Amazon)
Motherboard: ASRock - Fatal1ty Z370 Gaming-ITX/ac Mini ITX LGA1151 Motherboard ($173.98 @ Newegg)
Memory: Team - Dark 16GB (2 x 8GB) DDR4-3000 Memory ($179.89 @ OutletPC)
Storage: Western Digital - Black PCIe 256GB M.2-2280 Solid State Drive ($97.99 @ B&H)
Storage: Seagate - Barracuda 2TB 3.5" 7200RPM Internal Hard Drive ($59.99 @ Amazon)
Video Card: MSI - GeForce GTX 1080 Ti 11GB AERO OC Video Card ($733.98 @ Newegg)
Case: Fractal Design - Node 304 Mini ITX Tower Case ($84.89 @ OutletPC)
Power Supply: SeaSonic - FOCUS Plus Gold 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($83.99 @ SuperBiiz)
Total: $1868.68
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-12-08 02:30 EST-0500

The node 304 is a feature packed itx case with good ventilation in a similar footprint.
 
The reason I went with the older 7700 is because of the price. The 8700 is overpriced for 4 additional threads, is out of stock and there are only Z-Series motherboards available that are significantly more expensive than their H-Series counterparts.

One of the major questions I have:
Do you know anyone who has had experience in regards to installing a GTX 1080ti into a mini itx case?
If so, do you think the ICX cooler will be able to adequately handle temps in a case that small?
Thanks again for your valuable input!