We have this mature ume plum tree. Fruits like crazy but we just don’t have a use for ume plums.  My mom used to make umeboshi with them.

I don’t even want it to be removed due to the age and size of it. Could I top work it down and graft it then? i thought maybe with all the expert grafters here on the forum that someone could give me an idea of what i can do with a tree this size.