Rt.GV wake-failure preventing me from running Ventura Installer

I'm working on finally updating my OS from Catalina which has been rock solid and stable for years now. My plan is to install Ventura onto another drive so I can boot both Catalina and Ventura for awhile. In other words, the Ventura installation will be completely fresh. I built a new EFI from scratch following the Vanilla guide including redoing SSDTs, updated kexts, and redid the USB map just in case. (The USB map is the only place I deviated from the guide and mapped them while booted into Windows using USBToolBox). When I try to run the installer I get thrown a handful of errors and then I get a kernel panic. Scrolling through video of the installation attempt and later through the log, I think I've pinpointed the following errors to be the issue:

25:848 00:018 AAPL: #[EB.LD.LF|IN] 0 1 <"<null string>"> <"1"> 25:874 00:026 AAPL: #[EB.B.SBS|SZ] 723512 25:899 00:024 AAPL: #[EB|B:SHA] <c33af8ea725fa4ca7d5533f2d47e89874c6255ff> 25:931 00:031 AAPL: #[EB.WL.PWLFNV|!] Err(0xE) <- RT.GV wake-failure 7C436110-AB2A-4BBB-A880-FE41995C9F82 25:949 00:018 AAPL: #[EB.WL.DT|!] Err(0xE) <- EB.WL.PWLFNV 25:966 00:017 AAPL: #[EB.WL.PWLFRTC|NONE] 25:984 00:017 AAPL: #[EB.WL.DT|!] Err(0xE) <- EB.WL.PWLFRTC 26:003 00:019 AAPL: #[EB.LD.LKC|D] <"System\Library\KernelCollections\BootKernelExtensions.kc.development"> 26:023 00:019 AAPL: #[EB.LD.LF|IN] 0 1 <"System\\Library\\KernelCollections\\BootKernelExtensions.kc.development"> <"0"> 26:041 00:018 AAPL: #[EB.LD.OFS|OPEN!] Err(0xE) <"System\\Library\\KernelCollections\\BootKernelExtensions.kc.development"> 26:059 00:018 AAPL: #[EB.LD.LKC|R.2] <"System\Library\KernelCollections\BootKernelExtensions.kc"> 26:079 00:019 AAPL: #[EB.LD.LF|IN] 0 1 <"System\\Library\\KernelCollections\\BootKernelExtensions.kc"> <"0"> 

Unfortunately I haven't had much luck chasing down what the problems could be.
I'm running an iMacPro1,1 bios with the following specs:
- CPU - i9 7940x (Skylake X)
- Motherboard - Asus Prime X299 Deluxe II
- GPU - Radeon VII (Vega 20)
- Bluetooth - Fenvi FV-T919
 
Any guidance would be much appreciated!