i have no idea on sugar gliders, however there are lots of experienced panther chameleon keepers here on the forum. chameleons are a delicate reptile species that do need precise care to thrive
This isn't a sugar glider forum, but I'll give you a couple tips from past experience.
You will need a cage. Preferably over 2'x2'x2', you can get them at Petsmart or your local pet store, ask for a ferret cage or something similar. Make sure the spacing between the wire is smaller than 1/2 inch because they will get their heads through it. Also, make sure the cage is plastic coated or something that won't rust. And you want to get one with nice latches and locks that aren't within their reach, because they're very good at opening them. You want to put lots of hammocks, wheels, and other toys in the cage, they love to climb and exercise, they're very active, a wheel alone will not be enough for it. As for food, you will need to have dry food (not cat food). Protein such as chicken or turkey baby food, mealworms, crickets, and/or boiled eggs. And varied fresh fruits and veggies. You want to offer ALL 3 of them, preferably more fruit, veggies and protein. Also, you have to be okay with them peeing all over you, because they will when you handle them, they don't care.
As for panthers, you want a cage at least 16x16x20 for a baby/juvenile, as it grows up you're going to want a 18x18x36 at least. The bigger the better. You cannot put a chameleon in a glass tank for a snake or something like that. You want to have lost of climbing places, leaves, sticks and vines. You can put a live plant in there if you want, but only non-toxic plants, Ficus Benjamina, Schefflera, and Pothos plants all make great choices. They love to climb and live plants give them lots of climbing and hiding places. You will need one UVB bulb (I recommend the ReptiSun 5.0) and one incandescent bulb. They need a basking spot of around 100 degrees Fahrenheit with the ambient temperature between 75 to 85 degrees. It is important for panther chameleons to thermoregulate. That is why you place lights toward the top of the cage. Don't put anything at the bottom of the cage, any kind of substrate will only make it harder to clean and can cause various diseases. As for diet, you also want a varied diet, most keepers offer crickets as the main staple, but also offer superworms, silkworms, hornworms, waxworms, roaches, stick bugs, etc. Make sure you feed gut-loaded insects and dust them with vitamins, calcium and D3. You need to mist them at least 2-3 times a day, make sure the humidity is at 60-70% range. A drip system might be a good idea as well. Chameleons drink drops from leaves, they don't drink still water. As for handling, they're not the friendliest pet you can get, you can handle them here and there, but it certainly is not a dog.
I recommend you do more in depth research first before getting them. They're both HIGH maintenance pets. Not very easy to keep. So do research first, get what you need before buying them, and once you're 101% ready, you can go out and pick it out.