14kw

I recently was put in charge of a 14kw grow and I have a few questions. I have a decade of grow experience but my largest has been 4kw. I was looking for some help with light placement and height. The room is 20x23. 14 thousand Watters. How would you guys arrange them and at what hieght? (Scrog)

Also there was pm so I started spray with h2o2, next day nuke em (citric acid), next day milk/water and so on. All organic soil. What system would you guys use to water? Right now someone does all the watering by hand.

2 rows of 5 and 1 row of 4 lights.

Watering.. depends on your situation, are te pots on a waterproof surface? with drain?