I would love to find out what kind of specialty tools you have. Also, you may want to let you local chapter of the Experimental Aircraft Association know about the sale. http://www.eaa.org/en/eaa/eaa-chapters/find-an-eaa-chapter
Something else to take a look at is a solar mini split system. They're about $1600 MSRP + 3solar panels, but really low operating costs. http://www.hotspotenergy.com/solar-air-conditioner/