I know that this is an old thread... But I wanted you to know that I have created a tool that restore the "Full Fat Noobs" where you can install OS without an active internet connection.

The tool can be found here:
https://github.com/mdafer/rpi-full-fat-noobs

I have created a Python script that creates a full-fat-noobs-like structure on the fly, it's open source, feel free to use it!
https://github.com/mdafer/rpi-full-fat-noobs