Try to think simple and use what you got handy first the chickensjust need basic stuff like shelter food and water you can get some good ideas from the coop design page on this site good luck
I'm in the process of figuring out how I want my coop too, I've just been looking online to see how people did theirs...here is a great link with free coop plans, hope this helps!!!
I took down an old horse fence because they were eating it & reused the wood to make a brooder. Also, I pick up old pallets of wood & use that to make chicken coops. The only thing I need to buy is hardware & wire. There are many Youtube videos for inspiration. Just google DIY chicken coops. Have fun!
I built a chicken tractor out of a trampoline frame. It works well. I can move it around so they have fresh grass to pick through. I'm a newbie and just joined BYC.
I am working on a triple hutch/pen/coop now. The top section will be for rabbits , the middle for some quail and the bottom for more chickens. Made from a typical 4*4 swingset.