HELP... System hang and no idea what to do

*edit* Willing to pay for help!

So, I broke the cardinal rule... I have been running High Sierra with no issues since I upgraded upon its release. I needed to access a file from a program that couldn't run on anything below Mojave. Against my better judgment, I upgraded, and immediately remembered the reason I had held off in the first place: NVIDIA cards don't work on OSX 10.14 or higher.

I looked into downgrading back to high sierra, but preferred not to wipe the system drive. Instead, I purchased an AMD Radeon RX 5700 XT, but the card wasn't recognized by the hackintosh and none of my monitors worked.

I found this EFI Configuration: https://morgonaut.cloud/hackintosh/amd-radeon-rx-5700-xt-in-my-14-core-imac-pro-killer-efi-configuration/ -- I thought I installed everything properly, but clearly screwed up. Now, I can't even boot in recovery.

The message I receive on boot, even when trying to boot an installer via USB is:

"Freeing low memory (up to 0x20000000)...Result = 0OsxAptioFixDrv: Starting overrides for \System\Library\CoreServices\boot.efiUsing Reloc block: no, hibernate wake: no"

I have a very important and time sensitive project I'm working on. My system drive is backed up, so if the only way to get this stable again is to wipe it, reinstall High Sierra, and use my original NVIDIA GeForce GTX 1080 Ti, I'm fine with that option. Just need to get it up and running asap.

My build is:

PCPartPicker Part List

Type Item Price
CPU Intel Core i7-3770K 3.5 GHz Quad-Core Processor $404.98 @ Amazon
Motherboard Gigabyte GA-Z77X-UP5 TH ATX LGA1155 Motherboard -
Memory Corsair Vengeance 32 GB (4 x 8 GB) DDR3-1866 Memory -
Storage SanDisk Extreme 480 GB 2.5" Solid State Drive $811.21 @ Amazon
Storage Western Digital Red 3 TB 3.5" 5400RPM Internal Hard Drive $99.95 @ Adorama
Storage Western Digital Red 3 TB 3.5" 5400RPM Internal Hard Drive $99.95 @ Adorama
Video Card PowerColor Radeon RX 5700 XT 8 GB Red Devil Video Card $439.99 @ Amazon
Case Corsair 500R Black ATX Mid Tower Case -
Power Supply Corsair Professional 850 W 80+ Gold Certified Semi-modular ATX Power Supply -
Optical Drive Asus BW-14D1XT Blu-Ray/DVD/CD Writer -
Wireless Network Adapter TP-Link TL-WDN4800 PCIe x1 802.11a/b/g/n Wi-Fi Adapter $89.99 @ Amazon
Monitor Asus PA246Q 24.1" 1920x1200 Monitor -
Monitor Asus VE278Q 27.0" 1920x1080 Monitor $169.00 @ B&H
Keyboard Logitech CRAFT Wireless Standard Keyboard $169.55 @ Amazon
Mouse Kensington K64325 Wired Trackball $79.99 @ B&H
Custom Blackmagic Design DeckLink Mini Monitor $145.00
Prices include shipping, taxes, rebates, and discounts
Total $2509.61
Generated by PCPartPicker 2020-02-03 08:40 EST-0500

Thanks in advance!

submitted by /u/imakemovies2
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