PM, you are brilliant! What a wonderful idea! Yes, I am sure that would work! It does sound like a pleasant compromise... but wherever would we get wooden slats from?
[he slouches, cups an elbow in one hand, and taps his head, like a thin, carapaced Winnie the Pooh]
Acumen must have foods and things shipped here in bulk, to keep this prison in constant supply... perhaps there are empty wooden crates we could ask for, to break apart? Those are made from planks. Or perhaps there are fence-making supplies somewhere...