I think that you should be able to graft this onto another cherry tree, even one that isn't very good. If you take a real young tree and basically cut it off near the bottom and graft a branch into the trunk, it'll be the tree you want except for the roots.

Here is a website with some instructions on grafting.

Something we used to do with some trees was to make a cutting from a young stem--cut the stem off at an angle, then stick it in sand and keep the sand damp for a few weeks. Some trees will develop roots that way, but I don't know if cherry trees will.

You might want to post this on the tree forum (I think there's a tree forum on GW).