Questions about my first dual boot Hackintosh build (8700k, 1070, dual M.2)

I've finally collected all of my components and am starting my first Hackintosh build this weekend. I'm excited but also a little nervous.

I'm pretty savvy when it comes to wood/metal working, electronics, and mechanics. However; Operating systems make my brain explode. I'm coming from a EGPU setup that I was able to conquer with a limited amount of headaches so I'm confident I can make this happen. I've done quite a bit of research through forums such as tonymac, hackintosher, reddit, etc... so I have a catalog of bookmarks and my trusty MBP ready to guide me through it all step by step.

The only thing I'm not completely confident in is the storage section of my new build. I have 2 M.2 NVME drives and wasn't planning on using any other SSD's or HDD's (except external). I've seen numerous issues with people having to disconnect drives when installing or repairing. Is this something I'm going to need to worry about using the Samsung M.2's?

Another question: Is there any pros and cons to installing Windows 10 on the machine first and playing around for a couple days before installing Sierra or HS?

Here's my parts list: PCPartPicker part list / Price breakdown by merchant

CPUIntel - Core i7-8700K 3.7GHz 6-Core Processor$334.99 @ Newegg BusinessCPU Coolerbe quiet! - Dark Rock 3 67.8 CFM Fluid Dynamic Bearing CPU Cooler$61.69 @ OutletPCMotherboardAsus - ROG STRIX Z370-E GAMING ATX LGA1151 Motherboard$189.39 @ OutletPCMemoryCorsair - Vengeance LPX 16GB (2 x 8GB) DDR4-3000 Memory$184.99 @ AmazonStorageSamsung - 960 EVO 500GB M.2-2280 Solid State Drive$199.99 @ B&HStorageSamsung - 960 EVO 500GB M.2-2280 Solid State Drive$199.99 @ B&HVideo CardMSI - GeForce GTX 1070 8GB Video Card$889.89 @ OutletPCCaseDIYPC - D480-W ATX Mid Tower Case$49.79 @ Newegg BusinessPower SupplyEVGA - 750W 80+ Gold Certified Semi-Modular ATX Power Supply$105.27 @ OutletPCOperating SystemMicrosoft - Windows 10 Home OEM 64-bit$89.89 @ OutletPCPrices include shipping, taxes, rebates, and discountsTotal (before mail-in rebates)$2340.88Mail-in rebates-$35.00Total$2305.88Generated by PCPartPicker 2018-02-28 18:35 EST-0500

I already owned the 1070 and definitely didn't pay that ridiculous price.

I appreciate any help you guys toss my way.

Author: @shannmarriottjr