What a cute little coop! I could build that using pallet wood.
I was disappointed that there wasn't more information about how to build it, so I could try to recreate it.
I like that you were able to get a lot of things free from Craig's list. What a good use for the roof of the treehouse (or whatever you said it was) that you used as the floor of the coop.
I got a giggle out of your description of how to open/close the door!
Even though you live in California, I am still concerned that you used chicken wire to cover the run. I am pretty sure that raccoons live in CA and I know there are cats and dogs that sometimes get out or roam around. Raccoons for sure don't have any problems tearing through chicken wire.