I had a buddy give me a pig cooker. Its made from a 275 gal. tank. its clean and has been cooked in so I'm not worried about chemicals. Question is I would like to put a fire box on it. would the fire box at lowes for the chargrill be big enough. For 50 bucks I would have more than that in a scratch build. I want to set it across the trailer and have the fire box in the middle like a dpp. thanks