Hi i work in the refrigeration industry and like your idea. It should get you by in a pinch, but i wouldn't trust it for too long. Increasing the volume of the cooled space makes the compressor undersized, so it may very well never get down to its original operating temp, and it may run for all day. But if it gets you by, then thats good enough for me. Also caulk all the seems and i wouldn't recomend tipping the compressor on any side other than what it was origanlly. Good luck.

cabage