Zen Cart to eBay export

Hello, We are running a Zen Cart Shop version 1.3.9g (late version) and we’re looking for someone who can program an ebay addon. What it basically should do is export our shop items from the zen cart shop into our ebay store. What the addon should be able to do: - Export items to our ebay store - Be able to select/unselect single items or categories which should be published to ebay - Before publishing to ebay, display ebay fee for whole category that is being uploaded. - Be able to adjust the items price before exporting to ebay. (Individual or whole category by certain percentage) - If item set as out of stock in Zen Cart, it should delete item from eBay store as well. (have some kind of prompt before deleting of ebay would be nice. - If item description/title/text is being updated on Zen Cart, it should do the same on eBay. We’re looking for someone who has previous experience with the eBay API as well is familiar with Zen Cart.