I had a hard time meeting that #1 goal of "light and portable". Looks like your setup will come much closer! Thank you! I have been studying them for a few weeks now.
After reading your posts, here are a couple things you might want to think about:
Will you have enough access to the inside of the run?I think so. With the door being right around halfway I should be able to reach everything. I see that it's slanted, 4'6" to 4' tall. Are you tall? I'm 5'6 I figured it was tall enough to kneel in and I did the front taller for water drainage for the roof. Are you going to be able to reach inside to clean the nest box area and gather eggs? Will you have access to the nest boxes through doors in the back wall? I should have clarified. I think I'm going to make a door that will actually be the back of the nesting boxes. That way I'll be able to clean them and gather eggs easily. I like the side door you added after seeing the photo from the city chicken. You may not even need a "main door" if you plan to change the food/water from the side. Are you still planning to hinge part of the roof? Depending on how you do that, it could really give more access. Currently I'm planning on 4 "doors" Main door, side/feed door, back part of the roof hinged, back of the nesting boxes. It may seem excessive but from what I have read/seen its better to have too many doors/access areas than not enough.
Will the chickens have enough shelter in stormy weather? I like the openness for the hot summer, but where would they go in a storm? In the nest boxes? Probably. Would the nest boxes be big enough for all of your hens in a storm? Did you say 2 or 3 hens? I didn't realize they would want to hide. I thought they would be comfortable on the roosting bars. I'll put 3 nesting boxes in if you think that would be better. I will have plenty of siding. I'm going to have roof and sides for almost 1/2 of the entire run.
Are you still thinking about using pvc for the framing? Would that be strong enough to support your roof and doors? LOL nope, its going to have to be all wood.
Wheels? Even as lightweight and portable as this looks, you still might want to add wheels to help you move it. My pvc run is 4x8, too. I slide it (empty) without too many problems. With the additional weight of nest boxes, a back wall, and a roof, I might recommend some wheels under the nestboxes. I have considered it but have read mixed reviews. I plan on building it without them and then adding them later if I find it difficult to move it around the yard.
THANK YOU THANK YOU THANK YOU for talking this out with me. Please tell me if you see any holes or flaws in my thoughts/design. I hope to start buying supplies and doing frame work tomorrow.