I have 3 ways I can nount this thing. The easiest way is sitting on top the frame with about 6" above the rear bed floor. This will save me from having to have a tank skid plate. The other mounting will require me to cut one of the frame braces so I can mount the tamk flush in the floor but then I would need a tank skid plate. The 3rd way is not cutting the floor at all and mounting it above/on the floor. I need some ideas. HELP!