Salamun alaykum
just a case study:
Lingustic analysis of key Bible words specially ELOHIM by Mauro Biglino & Paul Wallis in their research.
https://www.youtube.com/watch?v=Qo7e2Rh6WpM&t=2681s
In their research they concluded this word is PLURAL that means multiple gods.
The whole video is 4 hour long, including their research on other key words such as Yahweh according to their methodology.
I suggest if you have time watch the full video to see how they analyze in their methodology and reach their conclusion regarding this book and you can detect some biases and predilection in their methods and you may also find some useful information regarding your search about the original plan of the group who write this fake book looking like a scripture and actually who might they be specifically. I got some indication that this plan might be orchestrated originally by the Nofus(Alghabireen) with the help of other living Anfos, maybe. What their wrote is interestingly looks like its narrating their story the kings and queens in different location who dominated a geographical location and their people, It reminded me of the woman who took control of 3rsh of people of Saba and consider Herself a king or queen.
https://www.youtube.com/watch?v=tLwDBEMjAxs
the Elohim only part link
Regards
Sina
Syarif Udin
Maybe they have seen Marvelous Quran before :)