pot IS very tollerant to abuse, but why let it take unnecisary stress and risk death, if you have the chance, put it indoors overnight when theres a chance of frost and low temps, it should already be flowering at this point no?
if not u may stil have 2 months to go and then that 8 foot plant will probebly put on another 2-3 feet, so i would find a good plot to let them grow in or chop down some of the taller branches and make clones.

of course if u have all the room to grow them out fully go for it, youll probebly get over a pound off each plant.

happy farming