I don't know what "break the bank" is for you, but I'm cheap and I think pre-fabbed chicken coops are crazy expensive. We ended up just building one ourselves.

But….I'd check Tractor Supply.

I can't help you with your direct question, but I got chickens a year ago. I built a basic sloped roof wooden storage shed as a chicken coop because I wanted to have something useful in the event I decided chickens weren't for me.

The pre-built coops are so expensive I'd bet you could buy a small shed and use that.

6-10 birds is going to require something bigger than TSC carries. If they do, it won't be cheap. If you are going to free range them every day then the coop can be much smaller. I think the best and cheapest option will be to build yourself. When I built one many years ago, I would go through developing neighborhoods and ask any person there "donde esta el basura?" And then "puedo tener esto". The wander was always yes and I'd back my truck up and dumpster dive. One dumpster will provide most of what you need. I got full length dimensional lumber, siding, even partial boxes of nails and screws, windows…TODO ESO!

If you go this route, and you aren't too far, and timing works out, I can get all the roofing you need if you want shingles. And if I can't help you, ask a roofing PM at a build if you can have the leftovers. Everything that is opened is going in the trash when they are done. Just sayin'.