I'll field a couple of the questions here.
1) Hiring LOTS of folks. Just do the math, the mins went from 1500/500 to 800/200 in about six months. That wouldn't happen if they didn't need pilots.
2) Nope. They don't pay for your lodging or per diem for training other than time at the sim in SEA. For groundschool you're on your own. You get paid training pay for ground school but that's it.
3) Brah, if you've never been to Hawaii, you'll have sticker shock unless you're living in Manhattan or Tokyo right now. Housing is small, difficult to find and expensive. [Think $700 for a room in someone's house] Groceries, gasoline, and.....well, everything is more than you'll pay most places on the mainland. But it's the price of paradise.
4) As far as your salary making ends meet, it's probably not going to happen unless you marry money or live in your car. Your $12k a year would go MUCH further in a place like Akron or Pittsburgh. Of course, then you'd be living in Akron or Pittsburgh.......
5) Do some serious calculations before making the move out here. It's not something you can take casually. Shipping your car from the mainland, shipping the rest of your stuff, flying out (on your own $$) and finding a place to live will take some financial planning. Some folks don't stay because of these factors. Moving to a place like Houston for CoEx is not nearly as difficult or as much of a gamble.
Good luck to anyone trying but be sure you know what you're getting into.