Amazon API expert

We need a php function that communicate with amazon server and etract necessary information as decribed bellow. The function gets following parameters: function get_total_price($ASIN, $site, $dest_country, $dest_zipcode){ ... } Inputs: $ASIN: ASIN of a product in Amazon $site: Indicates an amazon website. it can be 'com' for [login to view URL], 'ca' for [login to view URL], '[login to view URL]', 'de' or 'fr'. $dist_country: The country where the product must be shipped to. $dist_zipcode: The zipcode where the product must be shipped to. Return value: The function returns an array, with the following structure: array( 'seller_id_1' => array( 'price' => 10.25, 'shipping_cost' => 8.95, 'tax' => 2.23, 'currency' => USD 'condition' => 'new', 'positive_feedback_percentage' => 98, ... other available info ), 'seller_id_2' => array( 'price' => 15.25, 'shipping_cost' => 7.45, 'tax' => 2.96, 'currency' => USD 'condition' => 'new', 'positive_feedback_percentage' => 95, ... other available info ), ... more sellers of this product ) We prefer to use amazon APIs rather than extracting data from amazon web pages. No user interface is required, we need only a function as described above. Payment: I will put 50% in escrow at start, I will release escrow and pay remaing 50% after you deliver the working code. Please include URLs of your previous related jobs in your bids. Thanks, Amiri