I would suggest doing a search for a local reptile show if you wish to replace him. Most pet stores are a bad place to get chameleons. He may have been too young and something wrong with him before you bought him.Most pet store employees wouldnt even know if they are selling you a healthy animal...
I live in michigan and i do just fine with screen cages...if you need to point a basking bulb on another part of the cage besides the basking point you do it.
Your 2 month old panther may have a huge behavior change once he gets used to you. Ive had some babies start out being very afraid but in no time saw me as no threat and would sit quite calmly on my hand.
Veileds are a good one to start on just because when we all began we went through cage changes to figure out what works the best for our each situation and most likely a veiled is hearty enough to tolerate some mistakes you might make with your setup at first.
Ok you need a regular 5.0 reptisun long tube light...there have been very bad reports on those compact bulbs. Make sure there is a basking area for him where it reaches low 80s. No black light. Your other lights should be on a 12 hour on then 12 hour off each day. Dont be shocked if you need to...