If it were up to me, this is what I would do for prizes:
Moat: $100 cash for each team who did not qualify in the Moat
Steps of Knowledge: $200 cash for each team who failed the Steps
Temple Games: $500 cash for the losing team
As for the Temple run...
Making it to the Temple Run: a video game system
Grabbing the artifact: $1,000 cash for each player
Bringing it out of the Temple: a trip to somewhere in North America