I'm in. I'll work on chartering a bus from Seattle if need be for all the non-flyers like me. I love the charity aspect of it too -- I know a sweet little non-profit it Seattle that deals with area artists of all disciplines who are uninsured and facing life (and pontially carreer-altering) illnesses/injuries who'd love to work with you on it, espcially if you did it locally.
And, Oregon and Washington are loaded with state parks that have work-for-rent programs so you could take over an incredible piece of land for a week and the faithful could do trail work, critter counts and the like to cover the costs.