Cage and or RTT mount options

[SFROMAN]

I am looking for options for a fulllsize rack to place on top of my ARE shell. I would like to use it to carry all our sleeping bags in water proof bags as well as an ammo can or two with other miscelanous things. I also need it for mounting an awning on the passenger side as well as towards the rear.
will eventually be placing a RTT on top so would like it to be pretty stout.

Any suggestions, comments, feed back, recommendations would be great.

Here is a pic of my rig