Work em. Screw in anchors, chain, use fire hose piece. 10-12 inches is alot of years growth. Prune it too. Cut the height down, Can dig a hole and make concrete anchors with a few bags of concrete. chunk of tire can be used too.
IF you got a tractor, push it upright to pretension the tree.
Get earth anchors, angle them just like the cable will lie. I'd do 3-4ft high and 10ft away. If the anchors look skimpy, use 2 about 2feet apart.