What amount of winning would NOT crash the market? I only ask because i occassionally use just-dice as a lottery replacement. With normal lotteries state will take around 50% of the investments as tax already. Only the rest is paid out.

Then what amount would not crash the market?

I guess to prevent that it would be the only solution to claim that the clams will be sold in an auction on bitcointalk. Even holding them at just-dice would crash the price since people would fear you still dump.