I made a homemade incubator out of 3/4 pvc board with a 1/4 inch plexiglass window on the door and sealed it up would lining the inside with thin styrofoam be good to hold in heat and humidity I have flexwatt and a helix on it and a computer fan on the inside for air circulation on top shelf how does this sound its my first nice incubator want to make sure its done right???