2 1/2 years ago I bought a beautiful 7-8' Japanese Maple from a nursery. When they delivered it the tarp was not secured properly and the tree was exposed to the wind. I fought hard with the nursery owner to replace the tree of refund my money. He refused. So as of last fall 99% of the tree had died. There are 2 small branched remaining that leafed out last year. I'm trying to decide if I should dig it up and turn it into a bonsai, or air layer the live branches and go from there. The branch on the left has some back budding the other does not. Overall health of what's left doesn't look too good. Maybe I should not even bother. I'm new to Bonsai so any suggestions would be appreciated. Thanks in advance.