I wouldn't use a waterfall
I just mist 5-6 times a day and have a slow drip system... You can house babies up to 3 months together with no ill effects but after that I believe it is best to be seperated. I am not dismissing that it couldn't be done but I think it is best to keep em apart. I...
paper towel rolls and toilet paper rolls
they work great. i also like to put pieces of cardboard inbetween egg crates to keep them fom faling into each other(obviously for when you get more egg crates)
lighting
Personally I use a 10.0 UVB and I also use a 100watt basking light. My chameleons like about a 95 degree basking temp with a temperature gradient going to about 78-80 or so..