Step 1 - start with a playhouse
Below are some details of the construction of our chicken stuff
The tools we used....

J clips (for rabbit cages) worked great to put the cage part together.

Used a soldering Iron to cut off plastic buckets for water and feed bases - also to quickly make a hole to use a drywall screw to attach.

Playhouse mini-coop/chicken tractor

First nesting box/roosting bar design- there was too much wiggle room in the plastic buckets and they would knock the bars down occasionally. They must be unaware that the curve was supposed to STOP them from roosting over their nesting boxes

Other chicken things....

Waterer and feeder (vinegar jug and margarita bucket). The feeder works great the waterer was ok but we have done a couple alterations on the design since.