Do you have a basement, porch or garage that you could use temporarily to get them out of your living space while you await the delivery? I had to temporarily house my (grown) chickens in the house at one point last summer, so I cleared a room in the basement, lined the floor with a huge tarp and put pine shavings on top. The chickens had a lot of room to move around so they did well, and it wasn't in the main living space of the house so smell didn't matter as much. Best if outside, yes, but if that's not an option, other spaces can work in a pinch. Especially if it's just during the day, and you still bring them inside at night where they'll be safe.