Well, this is really the last post here.
Had to figure out why I couldn’t post my full backup bios. I’ve been trying to avoid messing with cleaning the ME and Nvram, but I kind of figured that was it.
This post and this post by @lfb6 confirmed that there’s no getting around it.
Cleaning the ME (thanks @plutomaniac !), and replacing the 2 existing Nvram Volumes with the Nvram Volumes in the stock Dell upgrade System BIOS, produced a good/programmer flashable bios that’s ME cleaned/Configured and that has the same (emptied/cleaned) Nvram structure that exists in the badcaps bios.
With UEFITool NE, you Extract as is the stock Dell bios Volume_FFSv2_AmiNvramMainRomAreaGuid.vol and Volume_FFSv2_AmiNvramBackupRomAreaGuid.vol Volumes (you can save them as .bin files).
With UEFITool_028, you Replace as is the 2 corresponding Volumes …
… with the 2 stock Dell Volumes, and then save the UEFITool_28 changed bios. You should be ready to programmer flash this saved, full bios.
Now we’re done.