Get a Kilowatt meter, hook it up to the various freezers and log the usage for each item (try to log at least 24 hours for each device) you intend to power off the batteries. Once you add up the usage numbers, you can determine if you have enough battery. How many days without sun are you planning for? Once the battery bank is sized, you can determine if 1100watts of solar will be enough to recharge the batteries in a day.