Manual? I don't recall reading any manuals when I was building the coop. Didn't even know there was a manual.
I built ours primarily with a chainsaw and a hammer. My wife -- bless her heart -- she brought me water (which was KEY!) and did a bang up job holding the end of the tape measure so it didn't flip back, held up some crucial boards so I could nail them in place, stood on lumber to keep it from squirming out from under the saw...all kinds of stuff. She even put a few nails in here and there..
Something just as helpful, though, was that she was very reassuring. When I finished a little something and was displeased with how it ended up, she'd remind me that they were chickens...and who cares anyway? When it was getting dark and I didn't feel like I'd made much progress, she'd say "you did this, and this, and this, and that...."..and I'd feel better. She put up with my groaning and swearing and the pitching of the occasional fit..
Guess I should be saying WE built our coop, huh?
Which is funny, because when it was done, she said...."Hey, you did it!"