Hi TheOpsSis,
thank you so much for your revised guide, now its working also for me but i had to downgrade the BIOS from the 1.40 (whitelist modded) to an older 1.17 standard BIOS
I reached MacOs and installed latest Clover to the main SSD and installed AppleIntelHDGraphicsFB.kext.zip via terminal. Trashed the complete EFI content and uncompressed your Efi post install to the EFI partition.
After rebooting i can reach the login but screen is completely garbled and unreadable as per attached image.
Do you have some hint for me ? Maybe the Kext is not well installed ?