71 Valiant source for upholstery?

Hey fellas
Does anyone know where I could buy replacement upholstery for a 71 Valiant 4 door? You know... the one without the split in the front bench seat? I've tried all the usual sources, but none of them have the right one. I don't care if it's a perfect reproduction, I just want it to fit properly. All I care is that it's a blue color of some kind.

Any ideas?