I have a 3.3CF 120V $120ish fridge from home depot, I've been using for four years. Anchored out I have a cheap
($45ish) to power it and a single
130w solar panel to recharge the batteries (440amp total). I've bolted the fridge down and in back and installed a latch on the door so it stays put when heeled over.
Best guess anchored out it plus lights (mostly LED) plus charging
the netbook and cell I use about 45-50 amps a day and in the summer anyway the one panel JUST ( or mostly anyway) recharges the daily load. That is in the evening the battery
voltage is restored to what it was the previous day.
One note the condenser on the smaller units or at least mine is embedded in the side walls, so care must be used when attaching brackets.
If I had the money
the Engel's are very good, but I'm a cheap sailorchic, and get a fridge with a small icebox
too. I did not know if it would work at first. but it's working rather well. Oh and I spend 10-15 days or more away from the dock
nowadays too. Probably could use another solar panel for winter or locations further south then the SF Bay