So my wonderful husband is my hero once again. He brought me 3 crates home from work. The base will be the 4x4x4 crate. I plan on using the mid size coop 3x3x3 for building material ( nesting boxes and so forth) and the small crate for the top, which will have windows! ( 2x3x3 ). If anyone has any ideas, let me know. I know that I will have nesting boxes on the outside of the new coop.