Need to figure out a reasonable cost track and cart for a reefer trailer, to sterilize wood. Eliminate Powder post beetles, and ash borers. The guy who owns the trailer will remove the refrigeration unit and wheels, my thinking is I can build a shelf and make an opening for my space heater to blow enough heat to get the inside to 140 degrees f to kill the bugs, and thus sterilize the boards, but have a bunch of work to do. Need to figure out how to build the cart and tracks a reasonable way to minimize cost. Anybody done this?