Web Data Scraper/ bot / Script Extractor and web scrapping application develpoer data mining, data extraction, web data

Please Apply for this job only if you have a thorough knowledge in Scraping Data! Freelancer should be Specializing in creating custom scraping bots for very specific requirements.
We are a small Amazon seller looking to expand our operations. We are looking to drop ship from walmart and home depot to Amazon this requires that you use any scraper or Crawler to derive item Sku, Item description, image, Price and most important stock in hand.
This project also requires that you develop an application or script which can help us access daily stock at walmart and home depot and update our inventory on Amazon.
These are the functions the script should perform

- Get products from WalMart into a master list using a Category Scrape
- Update price and quantity on daily basis using proxy server, If auto-update can be done then its even better
- Get Matching ASIN, Product Image, Current Amazon Price.
If you need to understand better try checking out a program called Tactical Arbitrage, we basically need a condensed model of it, what I mean is it doesnt have to do all the stuff Tactical Arbitrage does but lesser
Thank you for your interest in this gig.