Assistance with solar calculations

Looking at the solar available, it is half of what I get in Townsville, QLD, Australia, 2x 200W will not be enough. Your usage is 1.4kwh a day, and the production will be 1.3kwh a day.

You will be better with 2x 400W panels. You can stay with the 100/50, you might get clipped a few amps at peak production. I dont think you will miss it. It will be 10-15amps for 3-4 hours for a month or 2 a year. You could upgrade to the 150/70.

If you can afford the larger battery, get the 460Ah. You can never have too much solar and battery storage.