"Camps" are brutally overrated anyway. Get yourself a good coach and prepare for fights that way. If anyone looks how guys like JDS, Anderson, Lyoto....even Sonnen train. The idea of getting a giant circlejerk room with 1100 other fighters is archaic.
All of those guys are part of camps. Black House and Team Quest. Actually, every UFC, Bellator, WSOF etc. pro fighter is part of a camp. Every single one.
Training solo with a coach is all fine and dandy until you need to actually spar or roll. You know, hit and and be hit by a live, RESISTING opponent instead of playing pretend with pads that don't hit back, which any Nancy can do and feel like Anderson Silva. But if playing pretend is all you've done lately, you're going to be in for a shock once inside the cage, when the guy taking the pillow's place actually socks you one.
And if you spar or roll with guys that have no clue on how to resist someone at your level, it's called a waste of time and child-beating. Hence the concept of a camp of fighters near the same level.
You watched a few videos of black house guys hitting pads with a coach and assumed that's all they do and never spar? Seriously copter where do you get these outlandish ideas lol? There's plenty of videos of Anderson sparring with Machida, Erick Silva, the Nogs, and so on, so I guess they're all in on the whole circle jerk thing.
The closest thing to what you're saying was Fedor with his backwoods Stary Oskol camp, and even he had Alexander to spar and roll with as well as a few B-leaguers in the 2nd half of his career and a good number of world champ level Sambo grapplers throughout.
I can understand not needing a giant fratboyish camp like Blackzilians, but your idea of anyone fighting at this level while going solo, hitting pads and practicing katas with some Mr. Miyagi is pure fantasy.