The hoop type houses are versatile and a good place to start. At the least, down the road, they could still be used for growing birds out. I am ever evolving. I have a lot of wish I had done this or that. I have seen a lot of set-ups, but I have never seen a perfect one. A lot has to do with how much money you want to put into it. I, to satisfy my guilt, have reduced mine to using scraps for 75% of it. It is fun being creative with the limitations, but then there is always compromise. I built these with scrap lumber and some purchased tarps. I have sheet insulation under the tarps, and over the framing (on the roof). It makes for a cooler enclosure in our hot summers. They are 8' x 10', and I think they are appropriately sized for 8 hens. I like to move them with a coupe wheels, and a dolly (hand truck etc.). I have some bent rebar for stakes for when I expect the weather to be bad. They are easy to move. My boys put this row of 5' x 5' cock pens/ breeding pens together. These are good for broody hens, but I have since put a gable roof on them. My middle son put this together when he was 11. After doing one with me of course. I also use them as quarantine pens for new birds etc.