1974 Dart Police Sedan - A day in the life

Bruce,
If you are unsuccessful in finding seat covers you might try SMS:
http://www.smsautofabrics.com/
I had them do an original headliner for our '67 Pontiac a couple years ago and they were super to deal with. They sent me a sample piece of original fabric that they had in stock - which was a perfect match. We got extra material to do the visors and sail panels. IIRC, the price was not "too bad".
C