Good idea for the ice maker...I like making smoothies.
This is the biggest cooler that could fit my TV:
Since I sometimes leave my trailer on site, I have room to put all my stuff from the fridge when I head home
What I do is freeze a lot of water bottles enough to cover 2 layers in the cooler. Put all my frozen food and ice cubes in a bag at the bottom and cover it with the frozen water bottles. Drinks and other food goes on top. After 5 days the water bottles is less than half melted then I put them back to my freezer at home for the next trip. First time I did this, I filled the cooler up then drag/carry it to the TV, wow that was too heavy, I managed but will never do that again lol. I fill the cooler in the TV from now on.
During cooler days, I set my fridge to the max and use it as a freezer. All my frozen food that were not consumed were still frozen after the trip. The cooler with the frozen water bottles at the bottom makes it a good fridge replacement.
PS. Using the frozen water bottles eliminates water in the cooler from melted ice