I recently purchased a Lowepro Rover Pro hiking backpack, as I am getting into doing more hiking. Since I am wanting to take my 5x7 with me, I have become concerned that the ground glass might break once everything is loaded in the bag and I start walking. Is there a practical way of protecting the glass? I would fold the camera up as much as possible but should I put some cloth over the glass or put the back in a separate compartment to ensure it's safety? Even a large padded envelope? I have a 4x5 back I bring as well. Just the camera, holders, tripod and bag are almost 30lbs already, so I am trying to keep the weight down.