Norton - Cynthiana vines

I'm looking for Norton - Cythania vines. It seems like most growers sold out when I check for them. I live nw NC foothills and always have had good luck with muscadines not so much with grapes. I thought since these were developed in somewhat this area they would work well for me. Friends and I make around 125 gals. muscadine each year would and like a grape that would do well here. I always liked the story behind Norton which drew me to it. thanks, Ron