A few comments:
– You are going to have plenty of cold mornings before KM. Are you okay hiking with just your shirt in 30 degrees? Or wearing your down jacket while hiking? Despite the drought, it can rain in SoCal. I would carry the rain jacket from Campo, even with the umbrella.
– What are the tyvek booties for? Camp? Once you get going, camping on the PCT means: hike til dark, set up tent, cook dinner, go to sleep. There are not hours of hanging out like at an AT shelter. The weight is negligible, obviously, but almost no one i knew on the PCT had camp shoes or missed them.
– Vinyl gloves? They're going to get so wet on the inside that you may as well not bother. And when you need them (like when you get a multi-day storm in WA or OR), you will be wearing them all day long. Find some breathable rain mitts.
– E-lite is too heavy for a backup light. Plus you have your phone. If you want a second light, get a little photon.
– I'll bet anything that alcohol stoves are banned everywhere on the PCT by June or July. Either get a canister stove or be prepared to go stoveless.
– Get a few waterproof matches as a backup.
– Carry sunscreen from the border and use it. Your umbrella will not keep the sun off of you completely (a lot of your UV exposure comes from light reflected off the ground). Also, get chapstick with SPF.
– I hope you're planning to carry out those wet wipes after you use them. They do not biodegrade.
Good luck out there. Between the drought and the big crowds it's gonna be an interesting thru-hiking season.