He looks dehydrated too me, sunken around the eyes. Get horn worms or silkworms to help with the hydrating. Try and get him to drink and spray the whole cage, not half. oh and the 10.0 uvb doesn't really matter
It wil be more then $200 for supplys. More like $500. Chameleons require a lot of patience, care and time. They are not good for beginers because of that. Bearded dragons are easy