Must be a BIG tent, you get a fair bit more room if you remove the back seat BTW
I have a Kargo master? think that's it, that mount to the front windscreen hinges and has a plate that is sandwiched under the rear tail lights (it also has an extra hole on the mounting plate for a stabalising bolt.
They sell these (oh look an updated version) from quadratec, I'd ask wooders first - he knows stuff.
http://www.quadratec.com/products/12138_000_07.htm
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Unmatched quality, high-tech design and superior durability. The Congo Cage features easy installation with common tools.The high-strength steel Congo Cage is constructed from round 1.625” diameter tubing and can support up to 500 pounds. Hinged rear mounts & easy-release front mounts provide convenient soft top removal and installation. Great for hauling canoes, kayaks, lumber and pipes when used with the optional Congo Cage Utility Crossbars. Supertough black polyester powder coat finish provides lasting protection.
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here's how it look son the back
and the frount