Buying used rails R 65, up to 5000 mt monthly

I would like to buy used rails R 65 or similar grade with a base width of minimum 14 cm and a weight of 55 kg per lineal meter.
Trial shipment 100 mt to 500 mt. 
Quantity: 3,000 mt to 5,000 mt x 12 months.
Please send your offers with the best price.