I want to put together a breeding tractor (or a few) that will fit in the back of my small toyota pickup truck. 4X6 or 4X8 max, but can be 6 ft or so tall and doesn't have to be a triangle type. I would like to have at least 3 birds in there (1 rooster 2 hens) but maybe more. They wont be able to free range due to other roosters running around all randy like. Is that going to be big enough? Should I make it a 2 floor type coop so they have some extra leg room? Suggestions? Is there a better way to do this? Requirements: 1. Keep a few birds seperated to be able to breed 2. Fits in the back of the pickup truck 3. Food / Water / Nest / Roost inside 4. Open bottom so they can access the grass Any fantastic ideas out there?