Don't sweat too much over the refer. Residential is a byatch in terms of energy, and I personally would never have it for off-grid, but compared to A/C this is nothing. Off the top of my head, I would say, 8cu.ft refer is 80W or less, when running. Start-up amps/watts are higher, yes. You should know the specs for YOUR particular fridge. There can be 3 times difference between yours and some other models.
The problem with these fridges is that, unlike A/C that you only need when it's hot, the fridge you need all the time. They draw very little, compared to what genny can output, but they draw it non-stop (cycling on and off, of course). Which means, either you have to carry a battery bank at least 300 AH, or run a genny almost non-stop. Doesn't "sound" like fun.
