Amazon Data Scraper/Lead Finder

I need an expert data scraper who would be able to find the following data fields for Amazon sellers: Company Name, Website, Contact Name, First Name, Last Name, Email Address, Contact Number, Address, City, State, Zip code, Country, Amazon Store URL, Ratings etc.

They would need to be able to find these fields according to a certain criteria. For example, Private Label sellers on Upgrade to see actual info who are doing more than 1 million CAD in revenue per month.

Please include answers to the following questions in your response:

1. What similar jobs have you done to this job?
2. What do you think will be the most challenging part of the job?
3. Do you have experience mining data from Amazon?
4. Please put the solution to this equation in the subject line: 4+6 = ?