Chameleon Info:
Your Chameleon - Male Panther, 1.5 years old
Handling - Very rarely, once every couple weeks maybe
Feeding - Primarily dubia roaches, with less frequent BSFL and mealworms
Supplements - Repashy Calcium+ LoD, and Arcadia EarthPro A
Watering - Mistking set to go off every few...
I highly doubt he's going to die of dehydration just because he won't eat hornworms. Just because you haven't personally seen him drinking does not mean he never drinks. As long as you're misting enough that the ficus leaves retain water droplets every so often, there's no reason to be concerned.
Absolutely stunning; I love this beautiful approach to a naturalistic habitat.
Only thing I'm worried about is that Solar Raptor. I know you said you've used it before, but even at a distance of 30in, its putting out more than 2x as much UV as a chameleon should be getting!
Solar raptor UV...