Hiya, I live on Long Island too. While I've never probed a snake myself, there are a few reptile shops on the island that I've had dealings with. Perhaps one of them would be willing to help you sex her? At least one of the ones I'm thinking of I know has quite a few carpets and breeds them - http://www.dnjreptilestore.com/

For the record I love JCPs. I fell in love hardcore at the last reptile expo and was so close to coming home with one.