Ebay has everything you need at cheaper prices than listed on that post. Titanium tubing that you can bend yourself and large 1/4hp refrigerator compressors which are better than the window unit type compressors due to lower pressure (I kicked this idea around quite a bit and did lots of talking with a heating/refridgeration company). In theory you can build on for much cheaper than the units you buy but I have never finished my project as fans seem to be working and no more temp problems.