We have a security system with motion detectors. The rabbits would set the alarm off if not confined during the night.
But these are going to be big bunnies; about the size of a small breed collie.
We are thinking about buying four Wabbitat pens and joining them together to make a really large pen. They would be fully carpeted to make sure they don’t hurt their feet. We’d put two end to end; taking out the end panels and roof. We’d stack two on top; removing the floor. That way the rabbit could stand up. They’d be 74 inches long and 38 inches tall with a carpet floor.
That should work shouldn’t it? Pictured is a single unit.