Hi, I think that will be just fine
With demi I had planned to use the fireguard she was using as a pen, put some cardboard around it to stop drafts and build a rail.... But she had them early! Lol
I have since made her a diy bed from 2 cardboard boxes and used an old cd rack as a rail.. but am getting a load of wood off my papa to make a pen for when the pups get bigger.

x