I got a similar set up, there is a post here, i ll post a link later from a guy who made a grow house out of two rubber maid boxes. It's kind of what I am thinking, he took two of them, put one on the ground, and the second one serves as some extra space for the plants.

It may be a good start, but you will need some extra high for your plants.
uncleweed Reviewed by uncleweed on . My First Grow =) Hey guys! Everyone seems great! :thumbsup: I need a pretty stealthy grow due to nosy people (not my parents, I would never keep it from them if I still lived at home!), so it needs to be really small and compact. Here's what I'm thinking about (sorry no pictures, my camera decided to get a screen error): * Big plastic tub, I forgot the dimensions, but probably about knee depth, about 2 3/4 feet long and 1 3/4 feet wide, lined with mylar * A 75-watt tube fluorescent attached to the Rating: 5