A good friend got 41 oc dry from 2 Himalayas gold's under 1x1000 watt hps, an 1x150 watt cmh, with hydro, so i think it cud be dun, with a good strain, like Himalayas gold or wonder woman,
he did not use lst he just grow them really tall, about 11ft, and he veg them for 8 weeks.