The SFQ can be put up on stands such as barrels or blocks or saw horses even. You would simply supply a plywood bottom to the 4 foot by 4 foot boxes. Drill holes for water drainage. They can be covered with PVC pipe frame tents as the book shows. I have thought that it might be good to try 100 watt light bulb heating, maybe with thermostat control. The box might need to be insulated on the bottom and sides.