You must set the MLB, SystemSerialNumber an SystemUUID from your own.
This is from my NUC NUC7I5BNK. It is possible you don't need the Bluetooth and Wifi Kext.
Guten Tag,
an real_hopeless, hättest du vielleicht eie aktulle Efi Von dir falls du noch NUC7I5BNK hast ?
wäre mega nett!