Hi Mark,
You're making the right decision going with a DC compressor fridge. I only have a limited amount of experience with them, but so far I'm thrilled with mine. I have a Dometic CR110 and have been very happy with how it worked during a recent 1,700 mile trip. My new camper has a 240 watt solar power system and 220 amp hour battery system and I had more than enough power at a setting of 4.5 (1 low, 7 high). The contents were ice cold. Of course, I did a lot of driving on the trip, too, so I was able to supplement the solar charging with a 180 amp alternator. Your setup is even more capable than mine. As long as you get a fridge with a Danfoss compressor you'll be happy.
I'm going to be doing some more testing on my Dometic CR110 this week with amperage readings and total amp hours consumed per day and will post a complete review and analysis of my findings soon.
