Door panels from any '69 - '73 Polara, Monaco or Chrysler will fit so long as they came from a 4-door sedan. The rear door panels on a Fury are shorter. The seats from any '69 - '73 C Body 4-door sedan should fit fine. I want stress that the door panels must be from a sedan. Rear door panels from a station wagon likely will not fit as the wheelbase is different on the wagons and Furys and the difference is in the rear seat area.
I need to correct you on this one Bill,
Front door panels are the same between Chrysler, Dodge, and Plymouth. Dodge uses a 122 inch wheelbase, so in the rear you can use Dodge sedan panels, or Chrysler, Dodge, or Plymouth wagon panels.
Jeff