Where Can I Find...

Welcome aboard. Glad to hear you working on this together.

As far as the build/broadcast sheet goes, it is a computer printout that was used by assembly line workers that lists all of the various trim options. It is sort of the holy grail of a documented Mopar in that it provides even more information than the Fender tag. Places I have found them include - under the rear seat (in the springs), under the carpet, and above the glove box when reaching in under the dash..

Good luck and happy hunting

Grant