CA-1 is not a flippable district. It it home to multiple secession movements including the state of Jefferson and New California. It also includes the most Republican counties in the state. Also CA-4 has a Democrat running against the Republican and in a fantasy scenario would flip before CA-1, but neither is realistic. Both of these districts are extremely white there are no shy Hispanic voters to turnout. I point this out because your timeline has been mostly reasonable.
See, all you had to do was wait on CA-01
lol, I like your timeline, but some of these California races are a tad unrealistic.