Clean setup! I remember doing a Lebanese outdoors here in a similar sized pot. Ended up taking u-shaped metal garden stakes and basically staking her down almost in a spiral. Seemed to work well, but that was with only one plant.
Either way, looks like you have a plan and it's always fun to see big sativas in small spaces.
Either way, looks like you have a plan and it's always fun to see big sativas in small spaces.