Crawler - Data Scraper for iTunes AppStore & Android Market

We are looking for an Expert to create a script in PHP that will scrape the iTunes appstore and the Android Marketplace for specific data on all existing apps. The end result must be a list of specific data for each app that will show stats and information on individual apps that is built into a WordPress Module to manage easily on the CMS. Here is what you need to do next: A) Please reply with examples / links of your previous work B) Confirm a timeline to achieve this result. C) Indicate your estimated cost If successful there would be on-going work as we iterate this product.