How do I build a Chicken Coop/coup?

I need something that will house 2 Plymouth Rock hens, and two Easter Eggers. I would like detailed plans. I don't want anything fancy, or all of that stuff. I don't care if it is just three boars nailed together... really all I want is something cheep, simple, and will keep my hens safe from our racoons. I would like a place where the hens can sleep at night, and then a run. And don't say stuff like this: you shouldn't be looking for cheep stuff. It always turns out to be more costly, or any of that stuff! I know I will have to pay money, I'm just not looking for nice pretty things. Things that do their job is what I want, and NEED!!!!