A lender providing a loan of $8.5 million requires semi-annual payment of interest at a nominal rate of 6.4% per year, and repayment of the $8.5 million principal at the end of 11 years. The borrower plans to accumulate that principal for repayment at the end of 11 years using level semi-annual deposits into a sinking fund that earns interest at a nominal rate of 5.9% per year when compounded semiannually. What is the borrowers total cash outlay every 6 months?