you know about the GTS registry?
http://www.gtsregistry.net/www.gtsregistry.com/index.html
Repost a photo of your fender tag. Many times a code that does not come up on the web sites can be decoded by matching another fender tag from members like me with one family cars (ie 100% known history)
Also you can get an IBM card for your car from Stellantis historical. I can help you decode it.
Chrysler Historical new contact info.
Lastly post some photos!