CNC = consensual non-consent
MMF = two men and a woman
I believe the last would be using a cock sleeve to increase girth and extra wreck the bottom's hole
The things he lists are very intense, and I can see some appeal to at least some of them, but it requires having built trust. I'd guess that one would want to have hired him multiple times with consistently good results to advance to the more extreme stuff. Trust and risk goes both ways, of course. It wouldn't be in his interest for things to go south either.
I do find it interesting that he also mentions being open to more vanilla things - it would be an opportunity to get to know him and decide whether or not to try the kinkier end of the pool.