That number 3 is similar to what I did. It has a gate so they are completely off limits but everyone can see each other. Now that my two ducklings are 7 weeks they still on their own go in there to sleep an I put the gate up an latch it.
I did it with Dolly she didn’t budge.That looks good. I'm bummed that I have to work around her as she is sitting. That will certainly stress her out some.