Hey, welcome. I'm kinds new too, but this is a great forum to come to. I'm not too sure on where to buy a Jackson, but I do know that it's very important to be prepared. So, in case you didn't know already, it's good to do some research on your chameleon and what they need. I would recommend you also get everything you need before you even purchase them. (it's also nice information to know that chameleons aren't the handling type). If you already knew this, then sorry for wasting time. I hope you find what you need!

Good luck!