Amazon & eBay Intergration with repricing capabilities

We are seeking an integration solution that links activity from Amazon to our eBay listings. Specifically, we wish to have automated pricing updates done on eBay where values change on Amazon for the same SKU. The SKU’s will be predefined with a mapping file, and the software must simply scan Amazon for changes and update eBay accordingly. Updates will include prices and stock only. Prices need to be able to have logic defined (for example if Amazon price is £X + eBay price is £x+20%). Stock is true/false. If the item is in stock for Amazon FBA (only, not 3rd part sellers), eBay listing remains. If Amazon FBA stock is depleted, eBay listing is withdraw (written 0). Software must finally export orders from eBay and Amazon, and generate flat file for processing. In bullet points: - Checks Amazon held stock prices and stock levels on items (in stock/out of stock - if less than 10 units available pull exact quantity) from predefined list, which can be expanded, and generate this data into a list (flat file) - Able to write changes to an eBay listing based off Amazon data retrieved (where SKU is linked by a mapping file) - Reprice eBay listings using logic from Amazon (Amazon price +20%) - Sync stock levels by true/false. If item is in stock on Amazon FBA, stock written to eBay listings. If is out of stock, 0 value written to remove eBay listings. Check Amazon held stock only. - Able to extract all outstanding orders on eBay and Amazon into a flat file (can be different files)