Cheers, but I discovered that Thievery is stupidly OP coupled with free re-specs and the potential for easy savegame editing, so I don't need to bother with any additional cheese. Besides, I've too little time to learn how to mod D:OS 2 right now.
Perhaps this thread might serve as a basic guideline for someone who decides to go through with the same goal.
On story files
Are you still able to modify them? We are aware of some false warnings and are investigating.:)
I do believe I am. However, attempting to save them requires saving to a plain-text file, which is why I believed extracting them was a prerequisite.