Hey Luis,
Have you considered a high end cooler that can keep ice for 7-10 days?
http://www.amazon.com/Pelican-Elite-Cooler-26-5x12x12-5in-32-65Q-CC-LTBLU/dp/B00MEWEUXA/ref=sr_1_60?s=outdoor-recreation&ie=UTF8&qid=1433172717&sr=1-60&keywords=cooler
The bottom line: his install is a tragic mess because they failed to send all the parts,, twice,,, and parts do not properly fit each other and some damaged parts!
I searched for a year, out of the blue on a Lincoln Mercury lot, I found my 2013 E250, 4000 miles with the 4.6 engine, 4:10 gears, short wheel base, never titled, was use by Ford in house to transport Ford parts, $21K
A very lucky find