I think in the long run you would be better off building something smaller. That is 3 feet wide, over 3 feet tall and 2 and half feet deep, much too large for model bodies unless you are building big scale (1/8, 1/12) size vehicles. The plastic totes in the beginning of this thread are more than ample for most bodies and cheap to source, especially if you have a Big Lots nearby. Adapting a fan that is explosion proof to this setup would likely be costly due to the size.