WOW, you bid a stained cedar sided home like that? Man, that's well geesh man. If you have never done one before and you thought you could clean it anything like a regular house.. I'd call them back and say you made a mistake. That job will probably take at least 10 times the amount of work to do. You sure don't want to learn how to do cedar houses that way. Work with another company on a house first.. Then think about bidding them, they can be hell. I don't even like doing them and I've been at this for 16 years. I don't have the time to sink into one job like that.