Good place to live
You are living in a in great place for working with Uroplatus. Those are also the same cages that I have been using since they first came out and I have been quite satisfied with them. The 12 x 12 x 18 are what I keep my groups of 1.2 U. phantasticus in and the 18 x18 x 24 is what I use for 2 sikorae. They are all heavily planted and all are provided with artificial UVB lighting. The giant Uros, like U. fimbriatus are too big for even the largest of these cages. As for other species, I'd have to look them up and I don't have access to any of my books right now. I'm sure if you did an internet search you could come up with a list of the small and medium sizes Uros.
My personal preference is U. phantasticus, but they are all insane, in a good way.
Lawrence