I seen this cham on craigslist aswell. Guess we're both from the Bay Area
Just a few things i'd say, it looks like the cham has MBD (Metabolic Bone Disease) This type of condition isn't curable. If the cham checks out with no parasites, eats well, looks well hydrated, and overall looks healthy minus the MBD, then you have a good chance of caring for him.
A few questions i'd ask is what was his cage set up like with the previous owner? Does he have MBD? Was he born with a crooked spine? Have you got a fecal test for him? Does he have any parasites? How were you supplementing him and whats his schedule? Lighting set up? Misting schedule? Humidity levels?
You'd want to ask allot of questions so it's easier to care for him in the long run. He could have tons of things wrong with him such as parasites, respiratory infection, skin fungus, eye problems, mouth rot, MBD, etc. Like I said...if he checks out fine then he'd be heading to a great home
Just giving you a heads up, because having a first cham with problems such as these will be a nightmare. Especially if you have 0 experience with chams, but you've come to the right place so you have tons of members to help you out along the way. He's a beautiful panther nonetheless.
Let us know how it goes, and please update us if you decide to get him or not. Also ask for more pictures and upload them here.