Hi Maddoggie,
That sounds like a good start to a plan. I suggest adding a glass drinking cup near the base of a plant at the bottom of the cage so the chameleon always has access to clean water. For plants, Pothos vine, umbrella plants, ficus, and I’ll have to look at the safe plants list, haha. Veiled chameleons are known for taking bites out of plants in their cages so everything needs to be super safe. I would suggest just starting with the larger cage rather than upgrading 6 months in. Height usually makes tree dwelling animals feel safer so putting that cage on a stand isn’t a bad thing. Not to mention that would allow you to set up drainage of excess water from spraying/misting. Be sure to introduce variety into the diet with horn worms, silk worms, super worms and perhaps dubia roaches if you can stomach it. What is your plan for lights?