I love the repurposing of old structures to make chicken coops I would suggest going with something other than chicken wire, just because it does not keep predators out - they can go right through it.
A great article about feeding baby chicks. I would add that the medication used in most medicated feeds to prevent coccidiosis, amprolium, isn't actually an antibiotic - it's a thiamine blocker.
A good article! The only thing I would potentially add is some info about what breeds are better for meat, and can't be kept as pets as well - those being the broad-breasted breeds, which get very large so are good for meat, but have health problems as a result, so they don't make as good pets.