Can't agree more with the other posts. You will be on the coast where you are rarely further than miles from the next coastal town. (Northern Washington being the only exceptions.) I you discover you REALLY need it, you will be able to buy it. And, you will find, there are few things you REALLY need. (Good raincoat!) You ask if your bike will hold up, it should be fine. I always recommend to folks to get their rear wheel re-spoked with quality spokes by a professional bike shop or wheel builder. Most companies use inferior spokes and unless you weigh 140 lbs, sooner or later you will break a spoke or two. Sometimes you have to wait out a weekend for a shop to open ...or longer because of vacations, etc. Also, be sure to lube your cables before the trip. This will reduce housing friction and you will be less likely to break a cable.