It sounds like you have concerns about "specialized care" can you expand on that thought?
I was thinking along the same lines. If the brooder is set up where cleaning isn’t a big problem, they aren’t all that hard or time-consuming to take care of. A larger brooder can help with that. Make sure the waterer doesn’t leak and get everything wet. I don’t brood in the house, my 3’ x 6’ brooder is built into the coop, is elevated, and has a ½” hardware cloth floor so the poop drops straight through to plastic bins from
Walmart which makes cleaning extremely easy. I have 22 six-week-olds in it now and plan to move the cockerels to my unheated grow-out pen later today. My lows are forecast to be below freezing for the next week. I feed and water twice a day. That’s it for taking care of them. It’s not that hard and not that time-consuming, but you can set up a brooder that requires a lot more effort.
One problem I face brooding outside is temperature swings. You may have the same issue since you are renovating but hopefully to a lesser degree. Earlier this year I had a low of 18 but two days later the high was 81. In your brooder you need one area warm enough in the coolest temperatures but another area cool enough in the warmest temperatures. Usually inside a house that isn’t much of an issue but with your renovations you may have a lot of doors opening and closing. Depending on how you plan to heat the chicks, a larger brooder can often help with that. There are a lot of different ways you can provide that warm spot and let the rest cool down.
I don’t know your schedule for finishing those renovations. You might call Meyer and see if they will work with you on a later order so you are under less stress and can get the breeds you want. I don’t know if they will work with you or not, but what does it hurt to ask?
You will read all kinds of things on the internet and this forum. You are dealing with living animals so practically anything can happen, and you have human beings handling the chicks during shipment. Disasters do happen. Most of what you read are the horror stories where things go wrong. The vast majority of times nothing goes wrong. You receive living healthy chicks. I’ve had chicks mailed three times, once each from Cackle, Meyer, and Ideal. I received a total of 70 chicks in those three orders. All of them arrived alive but I did have one from Ideal that died a few days later. Some chicks hatch with something wrong and are just not able to make it, but that’s not nearly as often as you sometimes think from posts on here. As long as you provide appropriate food, clean water, a spot for them to warm up when they need to and are able to get away from the heat if they need to, provide predator protection, and keep the brooder dry you are unlikely to have serious problems. Clean water and a dry brooder are extremely important. Chicks aren’t that hard if you can provide the basics, but some people on here can really scare you.
One thing I recommend is to time your order so they do not ship close to a postal holiday. The number of horror stories on here go up around postal holidays.
Good luck with it.