Rear cargo storage

[Bling Bling Hummvee]

Hey guys just wondering if you know of a place to buy a rear cargo storage compartment for the H2 like this one? I currently have one for my Ford Excursion power stroke 4x4 truck & it has been cool. I have attached a photo of it. I am looking for the same thing for my Hummer, one that is built for having the third seat. They have an air shock inside to keep the top open when lifted & a hard top so you can pile things on top and leave it there all the time & not affect your storage ability much at all. Anyone know where to get one?? Thanks in advance!