First off thanks for producing your guides RehabMan.
I just got a NUC8i7BEH (0048 BIOS) with an EVO970 NVMe 500GB and Corsair vengeance 16gb ram. I followed your guide and I am able to boot off the internal disk no USB required. However, I am having a couple of problems. The first problem is that the system will not boot using the config_nuc8_bc.plist I have to use the config_install_nuc8_bc.plist. The second problem and most annoying is that the system is unstable, it's randomly rebooting, seems to be when I am accessing the disk mostly. It happened when downloading iterm2 and installing mac office.
Yes, I have the EmuVariableUefi-64.efi in driver64UEFI.
Could the plist issue be causing my random reboot issue?