I prefer the script[0] instead of the hacked ISO since you can install the script in later versions of W10 using your own preferred ISO.
Only caveat: There's no way of telling what versions of W10 it's compatible with (I imagine it breaks some versions). I have an old VM with AME installed and manually enabled updates by hacking the registry. (You could also alter the .BAT script to enable updates, but you have to know what to remove).
This project is cute, but I only ever used it for an offline sandbox for running low resource games and cracked versions of Photoshop. I am scared as shit to connect this thing to the Internet. I only connect to receive updates.
This looks interesting. Is there something like a Vagrant build image for this so that you can easily automate the build process to pick up the updates and adjust the configuration/customization in a json or yaml file?
I'll leave this here: https://ameliorated.info/
No Windows Update for you, so security is debatable.