Looking for advice/pictures on how to build wood shelves onto the inside of a bare cargo van with metal sides. I was thinking just 2x4s and chicken wire would do the trick. The only thing I need to hang up on shelves are my pro panels and paintings. The rest just ramps in from the back. so a row of shelves on the left/right above the wheel bases. Not sure best way to affix the shelves to the van sides. thanks!