WFTW
Adventurer
Holy storage compartment Batman! 
Something I think you may find useful is if you were to mount that rear box up about 4 to 6 inches. Doing so would allow you to make use of the storage area underneath the box...good place to keep recovery gear such as straps and shackles. Of course, then you'd have to do the same with the other boxes to make your sleeping platform even.
Another guy with a JK I know did this and I wish I would have done the same. I may still lift the Tuffy box I had up a bit, but am not sure I have the time to do so (still many other things left to do before the start of my program). Anyhow, something to think about if you're interested in a bit more cargo space.
Something I think you may find useful is if you were to mount that rear box up about 4 to 6 inches. Doing so would allow you to make use of the storage area underneath the box...good place to keep recovery gear such as straps and shackles. Of course, then you'd have to do the same with the other boxes to make your sleeping platform even.
Another guy with a JK I know did this and I wish I would have done the same. I may still lift the Tuffy box I had up a bit, but am not sure I have the time to do so (still many other things left to do before the start of my program). Anyhow, something to think about if you're interested in a bit more cargo space.