I found the original cooler had almost no insulation so it would not keep ice very long and would have condensation on the outside in warmer weather. I just replaced mine with a Coleman 5 day model that fits in the space perfect, however because it is a 5 day model it has insulation so it can not hold as much food.
I added a cooler drain on my boat, a short hose from the cooler drain through a ball valve to a T installed on the drain for the sink, makes lfe much easier on a longer cruise. (I added extra hose clamps and insulation to the hose since the picture was taken.)
I am looking for a cooler style refrigerator that will fit into the space. The Engle units I have looked into are too tall. I was looking at the floor of the cooler space yesterday to see if I could easily lower it, appears to be intergrated into the shelves so would be a lot of work in a tight space. I would be interested if anyone has found a proper fridge that fits in this space.
Bob