Deathwind, it sounds like you have a very solid framework in place. I just want to add a few comments from lessons learned during previous incidents
Cash on hand-There will be a run at banks and ATMs as people make last minute preps. Add a roll of quarters for vending machines.
Gasoline-Top off your tanks whenever there is a high risk of an wildfire or other incident. The lines at the gas pump during the '07 fires in San Diego were nuts.
Empty boxes and bubble wrap-Photo albums, house blessings, extra clothes, baby lovies, toys, etc. games. Just general quality of life and amusement stuff. Expect to be figbting boredom after getting where your going.
Lastly-Thumb drives were never designed for archival storage. Get an extra drive(s) and copy your files to both. Sort of a ertsatz RAID drive. The chances of both failing simultaneously are much lower then having your only one go bad at the worst possible moment.