Oh, I love it, too!
I only have 18 chickens, and I do sell eggs, but I've started earning enough selling them to cover feed costs.... only now it's winter.
You'll have a great time with all those biddies running around! And you've got lots of time to plan and get prepared. I know so much more now than when I first started. I'm so looking forward to redesigning my coop so that it "works" better. And the goat house! Manure management has been a real challenge, even with composting. Winter has weather challenges - drainage issues, specifically. I've been trying to iron those out for 2 years now.
You are smart to get all that minutiae dealt with now. I bet it'll save your sanity later!