hey man, when you told me that your tanks were screened on the sides, i thought you meant all sides. from the looks of it, it seems as though either of your setups should work. the only thing that concerns me is that the larger enclosure above might keep things too dry. as long as you're willing to mist often, i would imagine your animals should do fine.
however, there is one thing i would definitely change in those setups, and that is the soil in the potted plants. not only is there a good chance theres some sort of pesticide and/or fertilizer in there, but the perlite (lil white chunks) can lead to impaction if ingested by any of your geckos, which will lead to death. so see if you can wash out all the old dirt and add some pesticide/fertilizer free dirt (i always buy the big bulky bags of peat moss and it works fine for me).
anyhow, good luck with your satanics, and remember not to use a heat bulb on them, or else you'll be sorry.
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