Just scale your op to 6kw.
https://www.rollitup.org/hydroponics-aeroponics/6592-get-harvest-every-2-weeks.html
It's all explained very clearly and simply. He's running 2kw (plus another 400w HPS for his 5 moms) - and getting around 20 oz every 2 weeks.
With 6kw, expect around 60 when you get it...