I'll take a picture of the 4door that I have for parts. it should have some sort of panel on the doors to give you a decent idea what they looked like,but here is couple pic's of the flier they made to sell the cars
I saved these from an ad on this site, 64 Dart. This is how I want to do the interior in my wagon, I even briefly considered buying this car to rob the interior out of!
Check Ebay for sales brochures, like 66Dvert posted. They seem to pop up pretty often, and are pretty cheap. It might be worth it to you to spend the $8 or $10 for some original artwork.