You could participate in Million Dollar Challenge at CNBC (when it's on) or Robbins World Cup Trading Championships.
I figure that would get exposure.
Funny thing is, I was tried thinking of various ways to win a trading contest and I find there are some ideas that are inconsistent with longer term trading and would be unrealistic.
Other than that, anything that would raise credibility like being audited or something like that, I'm no expert in funds.
Anyway, what kind of trading vehicles are you going to use to trade $10 Billion? The only market I can think of that would allow you to short term trade like that would be Forex.