grow. led. grow tent.

I plan on growing the legal limit of 6 plants indoors where I live. My best option would be using grow tents. I'm thinking the smartest thing would to have 3 in flower and 3 in veg. What would be the best size tent to do that from my research 2 4x4 or 1 4x8 about 6 or7 foot tall tent that has a...