Option C. Drive to ORD.
There's likely no solution to your problem. No one here can make the AA MLI-ORD flight you want become available with miles. Have you checked United? ANA would charge 20K miles for MLI-ORD-DFW, DFW-ORD-MLI. So would United, if you have UA miles, but Amex MR transfer to ANA if you don't have UA miles.