Thanks for contacting me about your inquiry.
I would recommend that you go through a recommended nursery source for purchasing fruit tree root stock. For homeowners, UK Cooperative Extension recommends getting a dwarf or semi-dwarf tree, so it is easier to prune, spray, and harvest fruit.
Below, I have provided a link to our fruit and nut cultivar nursery sources publication. Each cultivar name within the list is followed by a series of two letter abbreviations which specify nurseries that carry the cultivar. This is followed by a list of nursery addresses, phone numbers, e-mail and website addresses. http://www.uky.edu/hort/sites/www.uky.edu.hort/files/documents/HortFact3002_2015.pdf
Feel free to contact me (Kristin Hildabrand) at the Warren County Cooperative Extension Service in Bowling Green at (270) 842-1681, if you would like more information.