Last night I installed a full sheet just behind the skid plate. I now have the front 2/3 of the truck done. Now all I need to do is take care of the back and rear wheel wells. I attached to any low hanging frame member that was handy and cut an access hole for oil changes. I still need to add a bit more clearance around the cat before I drive it.
The parking brake cable attachment point is the lowest part on the truck (other than the cat) so I cut a hole in my pan and made a bracket to attach through the frame here. You can see it in the center of the second pic.
I used self tapping sheet metal screws into the frame members everywhere else.
Time for a test drive. I'm interested to see how it sounds and how the engine temp is affected since the motor no longer has open road bellow it.