yes you can set the height of the shelf as low or as high as the side panels are
Thanks for the comments!
The Power Tank is affixed to a bracket it came with -- and that bracket in turn is affixed to the M.O.R.E. Power Tank mount, which bolts into two locations in the rear left cargo area. Also, the Safe Jack is strapped into the molle panel to keep it from falling off the ledge that it's sitting on.
Hey [MENTION=499255]frankdux[/MENTION] - great post.
Question - what did you use to strap the Safe Jack to the panel? I'd like to copy your idea ...