People continue to play this difficult guessing game with locals. The best you can do is guess. If you don't know the exact lineage of your cham you will never know its origins.
Best thing to do would be not to breed him :rolleyes:.
Make sure you give him lots of water. Once you're sure he's hydrated then you can worry about feeding him. Hydration is of paramount importance when dealing with WC animals! :)
Danny, I envy your collection! You have such a fantastic variety of trioceros (my personal favourite genus). All you animals look well taken care of. All the best with breeding endeavours.
Temps over 80 will be uncomfortable for any montane, as you said. Ir respect the fact you currently keep quads, but, in my mind, the two aforementioned species (quads and mellers) would do best in those temperatures for a short period of time. As I said, melleri would be his best bet.
Only...
Quadricornis or melleri sound right for you Brock :). Those temps sound pretty hot for montanes, though. Could you house them outside for the night? Maybe that would be a little cooler. There's not a lot of variety in terms of chameleons up here, but you could probably find some Quads and...
To be honest, I would wait a month before I introduce them for breeding. I'm sure shipping from Tanz was difficult enough on them. You will want to make sure they're eating and drinking well before you make any introductions. I am SUPER jealous btw :rolleyes: they're beautiful animals.