The live plants with a drip system running into the plant soil will provide enough humidity, along with spraying down the cage and Cham once a few times a week.

Make sure he has some sticks up high enough for him to be 6-10 inches away from the UV light. Those bulbs are only effective up to 12" so if he cant sit comfertably up there he may not get enough sun.

I would also reccomend giving him a variety of feeders including but not limited to gut loaded crickets, wax worms, super worms, and roaches. The live plants play a good part in the diet too, as they will eat the leaves.