I found plans online on a now defunct website and built this large outdoor chameleon cage with hood, stand, heat lamp and bulb, UVA/UVB fixture and bulb, reptistat (thermostat), timer, dripper, min/max memory thermometer, and plants. Cage dimensions are 2' x 2 ' x 4', with stand it is another 16" or so tall. I live in southern California and keep my panther chameleons outdoors year round with only a heat lamp during colder months. Cage, hood, and stand are stained with weather-proof/water-proof espresso deck stain. Wire is vinyl pvc coated so is safe for chameleons and is rust proof.
Inside the removable canopy/hood is a 150 watt ceramic heat emitter and dome fixture, UVA/UVB fixture and fluorescent tube lamp, a ZooMed Repti-therm (thermostat) to control the heat lamp, day/night timer, and a dripper. In the cage are many perches and branches, weeping ficus (ficus benjamina), dwarf umbrella tree, croton plant, tillandsias (air plants), live spanish moss, a min/max memory thermometer, and feeding cups.
I only put the canopy on during cooler months. I also built a veretical succulent garden to cover the pots, and covered the front of the canopy with various mounted orchids, bromeliads, and tillandisias.