Buying used rails R50, R65, 30 000 mt monthly, to UAE

I would like to buy used rails R 50 and R 65. 
Destination port: United Arab Emirates
My target price is within $180.
Trial order: 10 000 metric tons.
Quantity: 30 000 mt monthly.
After the trial order I'll take a bulk.
Please send your offers with a quotation.