here;s a flexible saw that could be used as you propose....

http://www.unbelievable-saw.com/

but be careful! * * A large limb coming down from height is
dangerous. *Large limbs can break before the cut is complete & rip the
tree's bark badly.

Proper / safe *tree trimming requires care.

cheers
Bob

Looks like what I need. Thanks. Now to go cut it while I sand
directly under it for benick's entertainment.