You are allowed to have the money. Do this, go into Chase, Wells Fargo, and ask them how the foren exchange works. They will tell you how simple it is. But if your so worried go report it. Besides they will know you have it when you turn it in.
What bank are you going to go to? Maybe you should call them now. If they don't except the dinar now, they certainly will not start excepting it once the redenomination starts.
I think banks report to the government transactions of 10,000 USD and higher. Its not a problem. I would not worry about it. Use your tax man for guidance