What reality star got 200k? They get a six figure deal, which is just over 100k over 3 years... And as for the TUF 4 guys, I don't know the terms there.
The "purses" are the only parts the UFC discloses.
GSP got 80k, 40k for winning and 40k for the fight. Hughes probably got more than that (as he got 150k for fighting Royce Gracie, who got 400k even though he lost. Lame.)
However, the UFC does not disclose what they get from the PPV's, and they never will tell us that. So that part is up in the air. Plus all fighters have various sponsorships that they get money for, having brand names on their trunks, T-shirts they come out to, etc.
GSP got a lot more than the 80k off of the fight I can guarantee you that. Not to mention Tapout gives 10k bonuses I think for submission of the night, and knockout of the night, so GSP got another 10k for that.
The biggest purses I believe for 250k for Couture V. Liddell, and somewhere from mmaweekly.com I read that they estimated the PPV cut to bring Chuck Liddell's total over 500k for that fight.