Just throwing this out there. Check local RV dealers, Craigslist, what ever. Perhaps you can find an old RV frig set (around the 5cuft range) which runs on 120 or propane.
Years ago, I had acquired an old RV fridge from a dealer who sold it to me for $50.00. The AC heating element was faulty so it would not run on AC current. The propane side of it worked just fine. I purchased a propane line adapter which I would hook to the fridge and to a 20lb bottle with an inline regulator. I had to light the pilot manually, but once lit with the cover back in place, I was able to set it outside by the wheels. It worked great and because it had a small freezer inside, I was able to keep up with the ice demand for my scotch drinks.
Of course, I would pre run it at the house to chill it down and load it up, but it kept cold enough during transit to the camp site. We would boondock on our hunts for up to a month.
We also kept a couple of 50QT coolers and wrapped them in old sleeping bags. Using a chest freezer at home we would freeze 4 five gallon buckets of water. Two each of which would fit laying down in the cooler. At the hunt site, kept covered in a tarp and wrapped in the old sleeping bag, we had ready ice to get out deer meat off the bone and immediately on ice. With this method it was not uncommon for the coolers and ice to last for up to a month in 80 - 90 degree heat during September hunts in eastern Nevada.
All of that is past and null and void since I live in Alaska now.
2015 White Hawk 25BHS Glacier Package
2004 Dodge Ram 2500, 5.7 Hemi, 5Spd Manual
2008 Arctic Cat M1000 SnoPro
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