HELP! Need 21 plant total. Veg room plus 2 Flower rooms

[twist1uc]

So, latevly I've been getting nervous about going over 21 plants total.

Here are some stats for my build/rooms:

Dimensions:
Veg room is 8x10.
2 flower rooms are 14x10
Power:
14 ballasts total.
Cooling:
Water Cooled, 5 ton chiller. 1X's 1 ton handler for veg and 2X's 4 ton handler for flower room/s.
System: DIY RDWC
Environment:
Sentinel 4 for each room.
CO2-- none as of yet. Plan on getting a tankless water heater.
The {current} plan is to give the veg room 4 of those ballasts, and each flower room 5 ballasts. I planned on putting more in each flower room, but I ran out of fun ticket$.

I have been contemplating a few growing styles. Two of my more favorite styles are:
My first thought is big ass trees, and I'm leaning more towards it now due to my paranoid mindset of plant count.
The other style is to model after Ttystikk's Silo grow. I like this concept quite a bit, however I would be shredding any mindset of plant totals in order to achieve this and properly take advantage of the space and equipment that I have.

So, I'm curious of your thoughts on what to do.

 

[Granger2]

For trees, you'll need verticle light. Good luck. -granger