I camp in the shade most of the time, so solar was never consider.
From your usage chart, looks to me the Maxair can be the biggest draw, especially if you use them for several hr a day.
Still with our use, the batteries you have would last us 2-3 days and that include 1 liter of coffee every morning made on inverter power.
Adding more batteries is one of the options, but they cost money to buy and money to carry and since you have good generator, just get one of those computerized battery charger to maximize generator time.
Again, with our use, all I would have to do is run generator for 1 hr every other or even 3rd morning when making coffee and charging batteries at the same time.
