So the chickens slept in their coop last night for the first time and they seem to like it, even though I haven't completed everything I said I would! It's been rainy here and I got some sewing commissions (that's my little home business), so I wasn't able to work on the roof again today. 
Aart, if I just use screws then the coop won't be 'collapsible' - I've put a screenshot of the hooks and eyes I ended up using instead of the safety hasps. The house unfolds beautifully - when i finish the roosts I will need to clean out the house and install them, so I'll put up pictures of the house in it's collapsed state. The hooks and eyes in combination with hinges that have removable hinge pins make it so that I can disassemble the house into the slabs its comprised of and load them into a moving van, since I know this rental property isn't going to be my final home.