Amazon Product API - regular data extraction and repricing

We are looking for someone to create an initial project with further work to be won thereafter to allow us to do the following using the amazon api - For identified amazon api nodes (which we would like to update or change), bring back all the items listed in that node with the following: title, asin, ean code, image url, lowest used price, lowest new price, 2nd lowest price, qty of sellers, salesrank.. Then on a regular basis either by us calling this or a regular cron job, to update the prices, seller qtys and sales rank for these and other products. We need this to be present in a database which we can extract data from and manipulate (mysql to csv/excel maybe) Need this work to be done urgently so require someone who has done this before extracting simple info from the amazon api.. Any questions, please shout and provide evidence of work you have done with amazon api.