if you want to do what you stated in your original question then no solar wont work, but with a slight modification , for example forget the ac, use propane for heat fridge and cooking, and AC should keep up fine. I just bit the bullet and put 320 watts of solar on my new 5th and in September up north here in Canada where the solar day is short and the sun is low my solar topped off my batteries every day, which I found out only because the power at the campground for some reason didn't run my converter. I have 470 AH of batteries and in the am they would be down to 12.4 - 12.5V and when the sun went down they would be full again and that was with the furnace running 24/7 as it was getting down to 33 degrees at night and only 45ish during the day.
Steve