Before you go that far .... (And this is assuming that you have already taken care of all the things that MUST be done first, according to both your state laws and your county laws, not to mention your local city laws ...) Please read this guy's blog and hear what he says happened to him and his beloved pet fox. It's short. Please please read it. You need to know. http://mypetfox.com/post/5307400847/a-final-word-on-fox-ownership
I don't believe they are for sale. You see they are wild animals and are not meant to be domesticated. Try looking at the animal shelter for one that looks like a fox .My dog foxy looked just like a fox. She passed away right before Christmas. She was17.