E-commerce integrated with price agregator - repost

Hello, *First: Need experience with magento and the Amazon Marketplace API. *Second: I only aggree paying any kind of milestone after the first phase of the project is done, So You`ll deliver the first phase functional and I`ll pay the milestone. We actually need an E-commerce wich the products are not included manually, but pushed from a price aggregator website like Shopzilla, [login to view URL], pricegrabber, maybe if their is no way of using one of the above, could use Amazon Associates. (([login to view URL] prefered)) FIRST PHASE: Create a magento extension that integrates magento with Amazon Product Advertiser API (PAPPI), I need to be able to chose wich categories I am going to bring to magento. SECOND PHASE We also need the shipping cost to be calculated in steps: - Shipping to our warehoue on US, fixed address - Shipping to the costumer house in Brazil - Variable address We need to stipulate a fee that is applyable to the final price, so the final price shoul be this way, and this composition of prices should be shown on the shopping cart (Price+shipping1+shipping2)* fee where: Price: comes from the price aggregator Shipping1: from the store to our warehouse (Maybe it comes from the price aggregator too) shipping2: from warehouse to costumer (website should calculate), there is already some extensions that do this part. fee: defined somewhere We would like a online traslation of the description of the product from english to Portugues(brazil). So would be 4 tasks: - Push Products from Aggregator to Magento - Apply fee to the final price and show this values on shopping cart. - two-phase Shipping - Online translate. The result should be something like this website: [login to view URL] which works with amazon associates, but I prefer [login to view URL] Note that it does not checkout at amazon like a normal amazon associate would do. ** If needed the budget could be extended but not too much. Thanks for interesting. The Deadline is october