65 dart wagon rear seat question

Is it the same as a regular 65 dart rear seat, or is it a different design? The rear seat folds flat in the wagon, so I am unsure.

I don't know for sure but the seat custion may be the same as a regular 4 door sedan. The seat back is definitely wagon only. All the seat covers in my wagon were trashed and no one makes (or is gonna make reproductions) for it. Since Legendary makes complete Barracuda interiors, I decided to use the complete interior out of a 66 Barracuda - buckets with a buddy seat up front and rear fold down seat in the back.

Also, does anyone know if there is a company that sells the rear quarter window seals for the wagon?

If you mean the long rear side windows, I believe Pentastar Parts and Performance out of Australia has them.