nero, only 2 people are 100% sure who won SAS as of today. They keep the final vote under lid until they start editing each show. From what I understand, even then only a few know who the final 4 are until near then end when they find out who the final 2 are. S7 was a classic year for most people wanting Rupert to win, only to see him go about halfway through. Rarely does the actual winner get much airtime until half way through the season.
I'm not 100% sure Fairplay wasn't on SAS, but from all my sources, no one thought he was on it. One theory is he and Sandra may be part of a 'ghost tribe' from AS who didn't make the show and they compete (like what happened this year, but instead of outcasts they are old contestants) and win and then replace voted off contestants. IMHO that would be his only shot at making the show.