New rooms wanting advice

I am making a new setup and want some advice for all of you guys!
I have 3- 600watt dimmable ballasts with aircolled hoods, I have 2 vortex fans and 3-16" floor fans to move air around the rooms. I will be using my 2 fans for the lights to pull air from the room to create pressure to bring fresh air in through passive vents. The space I have to work with is 14 feet wide 22 feet long and the ceiling is 8' high. 3 of the 600watts are convertible from mh/hps just wanted your guys advice on what size my rooms should be inside that space. I will be doing the walls in either panda plastic or Mylar for reflection, I will be having a separate clone/mother/ veg room using one of the 600's and a couple florecents for clones in the veg room. Having a hard time planning it out to make it so that I have ample room but am now wasting grow space. I will be doing 100% organic soil with Gaia Green products and the soil will be living and have earthworms in it. Any advice or plans for room size to maximize efficiency would be much appretiated! Thanks!

For flowering each 600 will cover 4x4 or 16 square foot max.

So what your saying is do an 7x3.5 room for flowering so that I wouldn't waste any light?

My Best advice is Utilize your space. My room is about 9 square meters. I'm running 3 x flowering boxes(6plants & 2 x 600w hps in each.) 2 x vege'ing boxes - larger box on the bottom is 1500mm high (can also be used to start the change of cycle) and a smaller vege box on top, for the younger plants in smaller pots.) I've turned an old fridge into a mother and cloning nursery, Mother in the fridge, clones in the freezer. Has worked perfectly for over 12 years now. I'm getting a harvest almost every 2 weeks or so...

GFV sounds like a great set up. hard to visualize in that space. do i read correctly, you are using 6-600w hps? do you have any pictures of the set up you can share?