I saw an outside Beaded Enclosure in Southern California once. This was an "old School" herper (ie, he still allowed his burms to incubate their own eggs)... He had multiple outdoor parrot enclosures made also. This was built about the same using heavy mesh wire that was burried a few feet down (and hopefully accross the bottom also)... In the middle of the enclosure was some burried PVC pipe which the animals used as a burrow. Wasn't much to it... I only met him twice so I didn't get a really good look at it or IF he brought the animals indoors.

Another cool thing he did was to keep his Chameleons outdoors in wire cages nailed to trees (with potted plants inside for cover)...he'd just spray them down with the waterhose... but what had me laughing is he'd sometimes throw dead rats/mice ontop the cages which would attract flies... the lizards would have a field day catching the flies...

I doubt that helped... maybe someone else has seen a better setup.

Graham