I plan on taking some scionwood from the old tree and grafting it to some B118 rootstock that will produce a near standard sized tree, but should start to bear fruit in 4-6 years much sooner that a tree grafted to a seedling rootstock which may take as many as 10-15 years to bear fruit.
I was lucky enough to get some scionwood last spring from an internet acquaintance who goes by the name of CrazyEd. He had discovered a late hanging apple tree in Wisconsin that he named the Airport Apple.
I grafted two B118 rootstocks with this scion and they are now firmly planted in the Back40. Someday the Back40 wildlife will be enjoying fruits late into the winter months from these late hangers.