OK. We dragged this beast all the way to Marathon Key from Tampa so we could have draft beer. Son of a bitch if the camp wardens wouldn't let us have an outside appliance.
Soooo we ran to home depot and built ourselves this kegerator in a couple hours. We still use it for parties.
The bottom is a 120 qt igloo cooler. There's 1.5 of insulation on the inside all around and it's back filled with great stuff. The box is concrete framing plywood and it's just screwed right into the cooler on all sides. The park rangers were really impressed and we were drunk, so it's all good. Since then it's made it back to the keys every year since.