Igs are huge commitment and take alot of time out of your day..they are very rewarding pet tho...I had to regime this guy to my friend because college and work didn't leave enough time to spend working with him.he was the most relaxed igg I have seen and would spend hours relaxing on the couch before chasing the cat and returning to his room
What exactly happened to his mouth? Never seen that before, he must be able to eat ok though? He looks pretty dark in the pics which would make me wonder if he's being kept too cool but hard to say. If you have the time, space and money to commit go for it, just keep in mind that they are a difficult pet that eats and craps a ton, this guy is pretty old so you may be looking at limited time with him and some health issues also.
I'm pretty sure it's from mbd but they said he was fine perfectly fine and and if he's not at the right temps I have money that I can drop to get him the right things he needs