I second the post above. Chickens do fine with minimal shelter - as long as they have a place out of the sun-rain-wind with nesting material they'll be ok.
The main worry is predators. You are pretty much guaranteed to have raccoons and dogs around. Build your coop to keep those animals out. If you can supervise your chicks free-ranging a few hours a day that would help if their run is too small.
Honestly, I would just suck it up and build the chicks what they need: a coop with 4 sq ft per bird and a run with 10 sq ft per bird that is safe from predators. Chicks that are aggressive with each other are no fun for the owner (think 'flesh wounds') and are not very happy themselves. Contented chicks make the sweetest sounds. They'll be happy and you'll be happy.
If the cost of materials is holding you back try Craigslist in the "free" section for fencing, lumber, gates, etc. Or pick up pallets at one of the home improvement stores. Be sure you get the pallets with "HT" stamped on them. That means "Heat Treated" instead of "soaked in chemicals."
If the visual is a problem there are coops with green roofs. Plants growing on the top of the coop - be sure to check the coop forum for tips to keep the roof from leaking! You can place plants outside the coop and run to camoflauge it or get free/low-cost paint from a thrift store or Habistores (also a good place for low cost building materials). Pick up an old kitchen cupboard and turn that into a coop. There are a lot of designs here and on other sites to choose from. Just protect those chooks from predators!