Sounds like you're all set. I was going to chime in. I've never had electric to my coop, so electric heater is not an option.
I use the rubber buckets from tractor supply for all my winter watering. I have old atv tires that I stuff with straw. The buckets sit down in the middle. Twice a day, during morning and evening chores, we drop the bucket on the ground. The layer of ice breaks, we refill, and repeat. Half my flock uses an old greenhouse for a winter coop. Most days the water doesn't freeze at all. In the spring I move the chickens out, and the beds are nicely fertilized. Oh, no weeds either.
BTW, my main coop has never been heated or insulated, the windows are always open, year round, and my chickens go outside every day. I've never had any respiratory problems in my flock of 30 laying hens.
A good book is Harvey Ussery's "the Small Scale Poultry Flock".
As far as buying eggs at the supermarket and going on a cruise...I'm ruined for mass-produced eggs. There's just no comparison. I don't order eggs when I'm out for breakfast anymore because of this. And there a cruise ship being towed to Alabama full of people who would rather be tending their chickens about now.