Still no Atheros. I've reset network settings, Snapshot my config.plist, tried changing the order of the kexts so atheros is before intel but no luck. Not a big deal since the intel is working but strange. Even stranger is that it is listed under 'PCIe' in Hackintool. If Hackintool sees it, why doesn't macOS?
Audio works, but not perfect under any layout (I have pc speakers plugged in to the back panel line out (green port) but with any of the layouts that work (most), the speakers always work only when 'Internal Speaakers' is selected rather than 'Line Out'). Also not a big deal and I went with layout 3.
Upgraded to Monterey with no issues at all. Unfortunately Ventura is a no-go with Ivy Bridge due to AVX2 requirement.
Thanks again for this awesome in depth guide!