If you picture yourself riding with the ocean on your left, also picture a strong steady headwind. You'll prefer riding on the coast southbound, as the wind is generally from the north.
www.crazyguyonabike.com has tour journals, many of which have packing lists. look for "pacific coast" route. you can get a book (bicycling the pacific coast) or maps from Adventure Cycling Association if you like to know what might be up the road in terms of food, camping, bike shops, etc. or you can just wing it and keep the ocean on your left (or right, as the case may be).
you are mostly on the right track but you don't need those books, you're not going to feed yourself on plants or need a survival manual. you're going to eat out of grocery stores and gas stations, camp in state park camp grounds and RV parks, and look stuff up on the internet on your phone if you need survival skills. you don't need two chains and locks, just one lightweight lock. You don't need 6 tubes, just 2 or 3 (there are bike shops). for clothes, don't bring jeans and sweatshirts, bring light weight stuff, and you'll probably want bike shorts.
if you find a charger that runs on photosynthesis, let me know, that would be pretty cool (there is no such thing). but you don't need that, you can just plug your electronic crap in while you are eating lunch in a restaurant, which you might do every once in a while, or at a library, or sometimes even at a camp ground.
I grew up in san diego, and never heard it referred to that way. ew.
have a great trip!