Haswell/Big Sur Boot Loop Help Needed

I'm working on getting Big Sur running on a Haswell system with the following specifications:

• Motherboard: GA-Z97X-UD3H
• CPU: Core i5-4690K/Haswell with Intel HD Graphics 4600 iGPU

I could not get any self-generated SMBIOS's to work, so I am using the ones found here: https://github.com/trick77/opencore-ga-z97x-ud5h

I followed the Open Core install guide, and made it to the installer. First reboot during install went ok, and with about 20 minutes left, it rebooted...

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