Think of a grow tent as a portable closet... hyou can score some good quality for about a $100 for a 4X4 footer. some what cheaper for a 4X2.... 2 of these, on for flower and one for veg and daisy chain your ventilation and you are rocking....
I looked at the tents, they actually look like they would work well for what I want to accomplish. although I am confused cause it said that they come with an exhaust hole in them but what about an intake hole. Also where would you put your ballast and light.