Not sure what the question is even...

but forget the Co2 if you are using CFL...it wont work.

I cant possibly see getting much better than CFL for seedling /veg and a combo MH/HPS setup for flower.

Your fan is a fundamental with or without anything else considered. It strengthens the stems and creates a strong point of delivery and transit of nutrition for the plants.

An indoor grow with out a fan just isnt a good idea for the health of the plant.

Also, I would consider the ventilation. If it is very good, you will have trouble keeping Co2 in the grow chamber.....

Great for larger areas and grows, but pretty impractical for small space grows.

You should definately ventilate and fan....use Co2 only if you have a larger area.