Plan for new ampere time 100ah bateries

Combining Ampere Time 200ah and 100ah batteries in 1 solar powered backup system.

This is the current 200ah battery https://amzn.to/3Kd1cMb
This is the 100ah I will be buying https://amzn.to/3PyGWpl

I will also need:
Battery cables for parallel connect https://amzn.to/3pCfkFn
Bus Bars https://amzn.to/3wgZ4gQ
Breaker to isolate the 2 new batteries https://amzn.to/3ClZDd5

I already have the 2/0 wire to add the new batteries to the new bus bars. This will give me a 5.1 KW 12v system for my AC and my other needs and will cover me in a power loss situation .. even an extended one.