Replacement Seat Fabric

My 1964 Valiant has a perfect original rear bench due to the original owner putting a seat cover over it for its entire life. I don't think it was ever even sat on. The front bench had a harder life. I'd like to recover the front bench to match, but I'm not sure where I can find matching fabric or a reproduction cover that will match. Does anyone have an idea of where this can be found? The seats are light blue vinyl with silvery blue fabric insert. Base style. Thanks for any help.