just gutted a 31 foot airstream. thinking about framing walls and using osb (plywood) to build a box inside of it, this way i know its completly sealed. rather than trying to just black and white polly. I would paint the inside of the box flat white. When u step through the door of the trailer to the left is 17' to the back of the trailer by 7'wide. This is were i would build the box, 6'8" high. so u would step into the trailer then into the box, this would be one large room,for flower. The remainding part of the trailer (the part u first walk into) would have cabinets for mothers veg and clones. also room to kick it (smokers den) and trim up some buds. Thinking of going with Hempy buckets veging in the cabinets under T5, then puting them in the flower room in a vertical system, like on shelves around 1000watts. Like maybe 3 1000 watts down the middle of the 17' box, with shelves in a octagon around each one. Was not gona go sealed, intake exhaust. What do u guys think? Please help. Need info on this idea. I know heats gona be an isue. What do u think about portable ac? and how would ac work with intake exhaust?