I’d suggest that you start a new tree and then take a bud from the old tree and chip it into the new one in two or three places. Chipping is not at all hard to do and there’s lots of people here who will be happy to talk you through it. Heck, we must have members in your area who would come and do it for you!
Where is that dern map, anyhow? Here it is: General Location Map of growingfruit.org members