This late in the season, I would ask if it is possible to cut the limb on both sides of the colony, and lower it .....gently...........and modify an old hive body (or build a large enough box) so as to be able to place the entire colony in the empty box
Seal up around the limb, cover it well, reduce the entrance, and let them be till spring-time; then transfer combs to frames, or possibly set a 'real' hive on top and let them migrate upwards.
I realize this may not be possible, but thought I'd throw the idea out there.