Amazon.com AWS CVS Spreadsheet for Buyback Site

Hi. I am trying to start a video game buyback website where users will be able to enter product names and UPC codes and be offered a buyback price based on the current secondary market price for a used product of that type. I would really like a script/program that can generate a file, such as a CSV, that I can have my programmer integrate into the site that will list, at least, the following information from [login to view URL]: - ASIN - UPC - Item Title - List Price - Amazon Price - LowestNewPrice - LowestUsedPrice - LowestRefurbischedPrice - Sales (Bestseller) Rank - Brand - Amazon Item url - Small Image url - Medium Image url - Large Image url - Item weight - Shipping Weight Right now on my site, I am interested in doing just video game buybacks. However, if this program can also be used for other product categories, I would appreciate that. Finally, if it is possible to somehow have a column or data field that identifies the games by platform/age, I would like that since my buyback equation will change based on the platform/age of the game. I would also like to be able to change my buyback equation in the future, but if this is a CSV file or something else that is easy to upload and integrate into a site, I would be able to manually go through the spreadsheet and do this. Payment via PayPal. Thank you for your time. If you need any additional information, please ask.