I am going to start keeping 2 chickens. Sounds like a good experience for the kids. So after looking at different tractors online i have decided to dive in. This design is giving me about 55 Sq/F. Although I am a bit confused how to build the House part of it. Were would i place the nest? It looks like on here some people are using 5 gallon buckets for the hens to lay eggs in. Do I need to Put in a few perches? any help would be great.