Magento project

My client has a Magento-based Ecommerce site selling a large number of new products. I'm willing to pay $100-150 for this work. It must be done in 16 days or less. Respond quickly on here I want to get this started. They've installed a Magento extension that allows users to sell used products through the site. (For details, see the extension on the [login to view URL] website: [login to view URL](remove_this)[login to view URL]) This extension needs to be customized to allow the following: 1) When listing a product for sale, sellers will be able to search through the existing product database to try to match their product with an existing product, so that they can copy the product thumbnail image, title, brand, category and description. (If they can not find a match, the existing extension allows them to upload their own thumbnail and product attributes.) 2) Like eBay, buyers that buy Used products should be allowed to leave feedback regarding their transaction, which are connected to the Seller's profile. For example, if a Used Book is in like-new condition and arrives quickly, they will leave positive feedback; if the book is torn/damaged and takes 3 weeks to arrive, they will leave negative feedback. Feedback should consist of two elements: a 1-to-5 star rating, and a comments text field. When viewing a seller's profile, their average star rating would be visible, and you could click to see all of the individual ratings/comments (again, just like eBay). Feedback should be subject to Administrative review before being posted on the site. My client will provide any front-end design support needed so that this section blends seamlessly with the existing site. Additional information submitted: 05/24/2010 at 20:46 EDT: Here is a link to the site. http://profe(remove_this)[login to view URL] If you click on the login button and use: username: billy(remove_this)@[login to view URL] password: mister there are two sections. The client created one is under the account information tab you can see that there is a section below for editing there avatar. the second thing is at the very bottom there is a tab call "sell your used books" this is where that user can place an que to sell there book. the book will be reviewed before activated through the back end. In the front end products that are being sold from a user will have there avatar image with a link to there information next to that product. Ex: http://professd(remove_this).[login to view URL] As you are aware there are two things we need done. 1) we need a star rating for used book sellers. If people look at that product and see the avatar and it will have a 5 stars below the image, people will be able to click on a star and that will rate the user and if they click on the (which you can right now, it will take you to a description of that user) from there they will be able to rate that user as well. 2) Back on the my account section under the "sell your used books" section when they click new product there is the input field "name" next to it should be a button called "search for existing product" when click it will search to see if that product already exists, if it does they can click on it and it will populate the rest of the fields with the existing information about that product (as well as the image). Here is a link to a zip file with the code in it so you can take a look at what ive set up. http://silverline(remove_this)[login to view URL] In here (hoping you know the strucure) in the code->local is the module itself called Ebizmart containing two modules with everything in it. In the design->profess folder has all our files in there the only two that have been adjusted are template->catalog->product->[login to view URL] (for changes to the product page to display user avatar) and the other is template->customer folder where a couple of files have been to display this module.