Oh wow, I feel the exact same way!! We have spent so many weekends with so little progress for the huge time spent. I see people posting on here...gave it 3 weekends and BAM, palace! After reading posts here I am always a bit depressed that I am not somehow completing a coop in 2 days. I can't count how many times I started looking up handyman ads on Craig's list for finishing the @#$%@#^% thing. Now I can't even do that as I am so close to done that I refuse to give up the right to say that I built it!
I also am annoyed with the lack of decent affordable coops. There are playset "kits" that you just go to home depot and buy lumber and put the playset together with the instructions and hardware provided. I wish there were options like that for coops! I found one that was somewhat like that, but there were enough things I didn't like about it that I might as well have just done everything custom. If there were more styles/finishes maybe I could have been less clueless. We do have amish around us, but I refuse to pay three grand for a coop! Also, they only seem to have this one style that has so little ventilation and a shape that I don't like.
I am now competing for how big a chicken can be and still be in a "brooder"

Just watch for a post titled "How to put nest box in brooder?" in a few weeks!