4" to 4.5" rear wheel bolt conversion on a '64 Valiant?

Ohhh maaan that's quite the tease! lol. But like the others mentioned they should be fairly common. In a couple months I'll be taking it to Charlotte, NC after breaking out of prison! lol
By the way, I love the early 'Cuda built off the Valiant, as well as the early Valiant with the "fin" type body pieces.