Ashlee's Beach Chairs Company produces upscale beach chairs. Annual demand for the chairs is estimated at 18,000 units. The frames are made in batches before the final assembly process. Ashlee's final assembly department needs frames at a rate of 1500 per month. Ashlee's frame department can produce 2500 frames per month. The setup cost is $800, and the annual holding cost is $18 per unit. The company operates 20 days per month. Lead time is 5 days. Determine the optimal order quantity, the total annual costs, and the reorder point.