Apparel ecommerce database software with eBay, Amazon, Magento compatibilitySoftware

I need a web based application for creating product SKUs, product images and populating a database with a range of custom decorated apparel and other goods, and pushing those products to Magento based websites, Amazon Marketplace, eBay and Google Shopping. The most important functions of the software now are: - Create product images from blank images stored on server by layering uploaded designs on top. - Insert into a database on my server all details necessary for export to Amazon feeds, Google shopping feeds, and Magento based shopping carts. - Export products to an Amazon Marketplace feed for apparel (parent/child structure required) The modules for creating ebay auctions, as well as export to Magento shopping carts can occur later if cost or time constraints make it necessary. The Amazon feed has to be included now as the Amazon Marketplace part is already up and running with 250 products. Client will need to have an interface to browse grandparent items ie “Smiley Face”, as well as parent items ie “ShirtLoco Men's Smiley Face T-Shirt”. From the grandparent interface, client will see all products created from that design, and be able to add new products. From the parent interface, client will be able to add/subtract colors, change user-editable fields, add/remove from Amazon Marketplace, add/remove from Google Shopping, add/remove from numerous Magento based websites, and submit the product as an eBay auction, again will all parent->child requirements for eBay variations. Client will also need an interface to manage blank items, their images and all SKU naming rules. Potential blank items are unlimited – shirts, sweatshirts, flags, mugs, coasters and so on.