"like minded"? We're enablers. Build big. LOL Or do you already have a structure on the property? Draft free, good ventalation, with roosts and nest boxes. That's all they need. Power is wonderful, but not necessary. A close water supply is nice, but if you don't have 100's of birds, you can carry 2 gallon jugs down daily without to much stress to the body. However, if you are building a new structure, keep in mind that chicken feed comes in 50 pound bags. If I had it to do over, I would move my coop one group of trees closer to where I park my car. My wagon broke and carrying those 50 pound bags is killing me.
I have tried sand in my coop. Not a hit, but I have a LOT more chickens than I set my coop up for. (Like 3x the amount I said was my max. LOL) I am slowly switching to wood shavings. The sand didn't add anything to the compost pile and I am having a hard time composting the poo for garden use. When I only had a few chickens I could scoop the sand poop free in a few minutes. Now I can't even find all the poop, cuz there are so many birds they have squished it into the sand. (Just my 2 cents regarding floor covering)