Plant too big running out of room, 1 week into flowering!

Hey guys as you can see she's getting pretty big. the reason for the long veg was i was moving and didnt want to start flowering because of the smell. there was a possibility of renters looking at the place.

i switched to 12/12 on sunday.

you can see from the pics what im working with. 60Hx48Wx24D

i dont have much room left, ive been LSTing for a while now but even the side shoots are getting huge. any advise one containing this beast?

thanks

horizontal grow flip the plant it on it's side cut away the bottom half of the pot transplant into a slightly larger container leaving the other half of pot intact and on as to cover the roots from direct sunlight. tie the chutes up in the direction you want them to encourage faster righting time. or even just laying the pot on it's side covering up the exposed soil and cutting a small hole in the upright side to water into but still tying up the chutes to encourage faster righting time
it's either that or you find a bigger home for her or cut her down
that i can think of anyways maybe other people can give more creative ideas