Movie Cars - Seeking Info

I own the 1970 Challenger used in the movie Bad Moms. I am trying to return the car to movie condition (filming condition). I am trying to locate/purchase the communication and camera equipment used by the production team on cars like this during filming. This car was a Picture Cars Warehouse car. Any help you could provide would be much appreciated.

I actually want to have the car at shows and let people sit in the car and then give them a free video tape of them in the car recreating one of the scenes in the movie. I’ve been blessed and have several old cars. This is kind of my way of giving back.