Ferrari 412 Koenig Special ?

On Instagram I spotted this Ferrari 412 :

https://www.instagram.com/p/DRsdkvqEQVR/?img_index=5

I had seen this one before as per blog:

https://erwin400.blogspot.com/2020/04/ferrari-412-in-punta-arenas-chile.html

 As such I posted it in the Facebook group and someone mentioned the following:

"That body kit cost 18,000 dollars in the 1990s in Sweden." 

When I asked which company made this bodykit I was told it was done by Koenig. 

I thought Koenig never produced specials for the 400 series as per blog:

https://erwin400.blogspot.com/2020/07/koenig-ferrari-specials.html

Koenig brochure:

https://drive.google.com/file/d/1KFwbOLTXpmHNy4s0b5dmUKCCVOCyq6Nd/view?usp=drive_link

Koenig pricelist:

https://drive.google.com/file/d/1VN_TexoXn3v7wfS7Z1AmKFNgH3DsHNZ3/view?usp=drive_link

You can see it's on the list available to order new but not as a Koenig special.

I'm not aware if they somehow produced a special bodykit for the 412 ...

Magazine Sport-Auto : Porsche 928 S4 - Ferrari 412 - Mercedes 500 SEC

When searching around I found this link with an article from the French magazine Sport-Auto.
It's unknown to me in which edition this is published. If you happen to know then let me know si'l vous plait.

https://porschecarshistory.com/porsche-928-s4-vs-ferrari-412-vs-mercedes-500-sec-sport-auto-mag-fr/

I have downloaded the files and converted it into a PDF which is available in the download folder.