I understand that I need to get the pen and supplies first. However, I don't want to be stuck waiting until next chick season to get the chicks I want. We are only allowed to have 6 hens, and we won't be showing them or breeding. Another reason I asked about coop plans is because in WI it gets very cold and snowy and I assumed that would affect how the coops needs to be built in order to protect my hens.
You're right, but chick season is right around the corner. By the time you get your coop built and their run area set up, there will be chicks available. If you can find someone who has been breeding buckeyes for a while, they can probably tell males from females at a young age.