http://naxja.org/forum/showthread.php?t=945929&highlight=started+my+rear+storage
Here is the route I took after having a heavy wooden storage box that ate more cargo space than it held.I like this much better because I can still pass out...uhhh... I mean camp in the back.
This setup holds all the stuff that the old cargo box did plus room for a little more and doesn't weigh a ton like the wood did.I know it's not for everyone,just an idea..