BUILD 4-but make them all at waist level....for 2 Does, 2 buck, and a "SPARE" GROW OUT house for weaned Kits. Good for overwintering breeders inside a barn- Slide out "trays" lined with pool liner for cleaning instead of wire bottom. Don't need a nest box . A bucket/nipple watering system in summer would work well sitting on top of the hutches- gravity feed. Maybe small drinking coolers with side nipples for winter like for chickens? Use 1x4 on bottom to help keep straw in hutches.