cool, let us know how sativa #1 smokes
a scrog would help increase yield. scrogging basically opens up the entire plant to light at a single level. each bud has a chance to get big.
and finally, how about a vertical scrog. this might be perfect for you.
1. hang a light or lift a light vertically (not blocking air flow from the fans)
2. put a plant or two in front of the light.
3. use a trellis/screen of some sort to let the plant climb and fill up the trellis.
4. buds will develop and grow towards the light, giving you a VERTICAL SCROG !!!
Something like this? :
Were I to grow a landrace Thai again, I would place the plants between the wall and screen. Would increase airflow once the branches fill out.
With a vertical screen, don't prevent access to the back for yourself.