The biggest flaw I see is the dimension of your rooms. How many mothers are you going to have?
Your largest room should be the flowering room. The veg and the moms can be in one room, since they use the same light. when vegging, the plants are small, so you don't need as much room just for them... I would suggest putting the mom's and veg together in one room, and doubling the size of the flowering area.....and your equipment should be in the room(s), not in a separate room. I would say a 400 or 600w MH would be great for a 3'x4' area.

Learn the basics first before starting with CO2.

keylime