dude.. i had a 2x2x4' tall veg space, with cfls, and it was still cramped.
Get a $150 wardrobe from ikea here is the link
and a picture
Then you have a space for equipment and your ballast in the drawers, you can use the smaller side for veg, and the larger side for flowering. Hell, use it as a divider in a room if you dont have the wall space. Or put it on caster wheels so you can move it if there is a door or something behind it.
Really man, I have done the math all sorts of different ways and this is the best solution for a small, contained, veg and flower chamber that is prebuilt for the most part, and still cheap. Unlike the $2000 premade grow cabinets..
Hope this helps..
You can find similiar products by searching for 'Closet Organizers' or 'Wardrobes'
Im leaning away from the "Mother Plant Mini Fridge" idea. It seems that it would be impracticable for what I have going... from here on out im looking for a dual chamber grow tent that is 3ft tall and 3 ft wide