What's the job market like for ICU nurses on Oahu?

How expensive would it to be to rent a two bedroom apartment on the north shore? I'm guessing around $1,500 hundred per month. Are there "trailer parks" or campgrounds where one can have a nice camper and save some money on living expenses? I lived there for several years in the military and loved the place (but I wasn't paying rent). Any other strategies for making my dream more affordable? Maybe we could move with another couple and share a three bedroom apartment or duplex? I'm thinking we could probably take the bus from the North Shore to Honolulu since the bus system covers the whole island.