Build a Website

A portal with script that pulls amazon products and displays on the website! The website should automatically update the links of the products being displayed with the affiliate id! This should be a shopping cart website where in, the vistor can add the products then checkout from amazon! I've come accross many scripts online at various market place, I could go with them as cheap solution to get this script by adding my own css styling to make it look unique! So please quote your price reasonably! Budget is variable! Along with the offer also please your working process in implementing it (A rough diagram how's it going to work) A Working Diagram with working process.