Will all these components fit in my case?

First time building a PC here and I want to make sure all of these components are compatible and would fit inside this case. Any and all help appreciated!

Case: CORSAIR Crystal 570X RGB Mid-Tower Case, 3 RGB Fans, Tempered Glass - Black

Rest of the build: RAM: Corsair Vengeance LPX 16GB (2x8GB) DDR4 DRAM 3000MHz C15 Desktop Memory Kit - Black (CMK16GX4M2B3000C15)

PCI-E: TP-Link Archer T6E AC1300 PCIe Wireless WiFi network Adapter Card for PC, with Heatsink Technology

Motherboard: ASUS ROG Strix Z370-H Gaming LGA1151 (Intel 8th Gen) DDR4 HDMI DVI M.2 Z370 ATX Motherboard with Gigabit LAN and USB 3.1

CPU: Intel Core i7-8700K Desktop Processor 6 Cores up to 4.7GHz Turbo Unlocked LGA1151 300 Series 95W

GPU: Nvidia GEFORCE GTX 1080 Ti - FE Founder's Edition

PSU: CORSAIR RMX Series, RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply

Storage: CORSAIR FORCE Series MP300 960GB NVMe PCIe M.2 SSD Solid State Storage

Basically, I just want to make sure everything is compatible, but I also have a few questions.

1. With that motherboard, do I need a PCI-E card?
2. If I were to get a different GTX 1080 TI, which one should I get for under 1k?
3. Am I forgetting anything?

I know I don't know much, so thank you for any help!