Agree that 200W will get you buy with the limited items you are mentioning minus the microwave. 300W might be better if you can fit it. You could also consider roof mounting some and then set a couple on the ground if you need more. Make sure the controller you buy will handle the final wattage you may end up with.
I am able to get by on 200W solar with two older Grp24 12V batteries boondocking with 18f for the low and 60f for the high. I set my thermostat to come on at 52f during the night and then up to 62f for about an hour when I wake. I will shut the heater off during the day, turn it back on when going to bed. Minimal usage of LED lighting and some water pump usage for very quick Navy showers. 1500W inverter that can run my TV and MAC mini for a movie if I want. Coffee gets made by heating hot water. My batteries are due for replacement soon but I will go with 6V golf cart batteries. Not having to run the gen(s) for battery recharge is priceless when sitting next to a river and no one else around.
If I want to run the Microwave, I need to start up my generators.
