Coops can be built from scrap or scavenged materials...they don't have to cost you a fortune to be cute and functional...its really in what you are willing to spend to have a few fresh eggs. It always amuses me when people talk about spending a lot of money to get/keep chickens.
Trust me on this....if it were expensive, I could never have nor would I ever still keep chickens. I have lived below the poverty line all my life and I still maintain a beautiful flock of over 30 dual purpose chickens that are healthy, thriving and actually MAKING me money and saving me money on food costs.
I am a single parent without the benefit of child support with a pretty low paying job...and I manage to have chickens without stressing my finances.
So all this talk about how expensive chickens are is a lot of hooey....of course its all expensive if you have to have the cutest, most insulated, best lookin' coop on the block type set up with "Ft. Knox fencing" and every fancy piece of chicken accessories that you can buy.
Its also expensive if you are buying exotic play toy birds that are fragile and sickly, can't support themselves in egg production or eat you out of house and home because you insist on feeding them 24/7, plus "treats", plus medicines, vet care(don't even get me started on that one), specialized feeds, etc., ad nauseam.
A good coat of paint and some imagination can turn a scrap lumber coop into a aesthetically pleasing dwelling for your chooks. Fencing can be found second hand or scavenged and made to look presentable.
A good family dog that is kept outside can deter most predators and these kinds of dogs can often be found for free. Good, dual purpose breeds that are cold or heat hardy can be found in your local ads if you are looking in the right places and they are often quite reasonably priced. Heck, you could get a $40 incubator and make all the chicks you wish....someone like me would give you all the fertilized eggs you could want~for $2 a doz.
Get birds that do well in your climate, build their immune systems, provide adequate shelter and you should have little problems. Its keeping chickens, not rocket science.
Being practical about their health care and husbandry can save you money also....you obviously can't pay $7 for a chicken and then turn around and get a $1500 surgery on her and save money. If you pay $7 for her and keep her for several years enjoying her eggs and then process her for chicken soup, you have actually MADE money in the long run. If she is injured to the degree that she either requires killing or vet care, the choice should be easy~you only spend what you would pay on the replacement value of your investment.