Congratulations on the doeling!
Lizzy, I hope you didn't feel I was being critical. The suggestions I made were from my own experience. I also have a metal coop, oriented north-south, sitting just inside a hedgerow. Mine is not a hoop design but other than that, a lot of similarities. Being inside the tree line definitely helps for shade. My coop is in full sun in the morning when the sun is in the east but as soon as it crosses to the west, the trees cast shade on it so by the time they go in to roost at night, the whole coop has been in shade for many, many hours. Nevertheless, it gets HOT in there and every summer I wish that I had followed my own advice and put a screen door in each of the north-south ends so that I could safely leave open the solid walk-through doors to allow air flow. Now that I understand you will have runs attached to each end, I agree you probably don't need the screen doors as you will be able to leave the doors open anyway.
My incubator eggs were on day 8 yesterday and last night I candled. I saw movement in all but one and that one looks like an early quitter. I can see a black blob that would have been the fetus but did not see any movement or veins. I left it in for a few more days but don't expect it to miraculously come back to life. Other than that one, they were all moving around vigorously and it was fun to see the little fetuses, surrounded by their network of spider veins. Being so early in the year I was a little worried about fertility so I'm glad to know things are working as they should.
I have a cockerel I need to butcher this morning, a hold over from fall hatching. There will be several more after him that aren't quite big enough yet to be worth the effort. There's a little too much testosterone coming into spring so I need to reduce the ones I don't need for breeding purposes. Then I need to get the tractor out and get serious about moving wood chips. I've moved about 10 lawn cart loads to areas I can't access with the tractor so now all the places I need them are accessible and it should go faster.