PDI Ltd has recently restructured its outstanding bond issue. The bond issue has 8 years remaining to maturity and a coupon rate of 10% per annum, with coupons being paid semi- annually. The new arrangement allows the firm to make no coupon payments for the next 5 years. After that period, normal semi-annual coupon payments will resume. At maturity, the face value of $1,000 per bond plus all the deferred (that is, unpaiD. coupons will be paid. If the required rate of return on these bonds is 15% per annum, the current market price of PDI Ltd's bonds should be closest to: