If I were you the first step would be to post your set up, pics and description, get it running, check RH and temps for a few weeks, let some of the experts here look at it and make sure it is perfect.
Captive breds will become available. Keep checking fauna classifieds, kingsnake, e-mail the sponsors here (LLL and FLChams are the two that come to mind that might carry this species.) Do not discuss here who is good and who isn't, also do not discuss prices. It is frowned on as it inevitably starts a fight.
The single most important attribute to a chameleon keeper is patience and an ability to act fast as soon as something happens!
It is likely you will wind up with a wild caught. If that is the case you will need to have money set aside for veterinary care and be aware the quality of care is much more important! I wouldn't recommend wild caught but know how it is to really want a species and that is all you can find!
Be sure to read the caresheet in the resources section here and read all the associated material and ask tons of questions for anything not understood. There are a lot of very experienced helpful keepers here who want nothing more than for you to succeed as a new keeper.