Where did you find the paneling? I really like the looks of if over plywood. And are you planning on painting it?
At Menard's, it's called 5/8" 4x8' T111 Plywood. They also make one that comes pre-primed for a bit more a panel. Mine were $23 a panel. I needed 9 total. I'm not sure if I want to seal/stain or paint the mews. I think I'm leaning towards staining.
I think we should all have to address each other by our screen names in real life...