data entry of product specifications

We hant to create a database with productinformation during the next year. We are looking for freelancers who understand English very well. The work will be in batches of about 200 products, for which a datasheet must be filled in on an online system. For each product we need the data for about 10 specifications, a description, picture, manual if available. Kind of products: Audio/video as television, gsm, camera Household as vacuum-cleaner, dishwasher, expresso, toaster, ... IT as notebooks, tablets, printers, .... Bathroom as bath, douche, ... We will deliver the productnumber and EAN code for each product. The software we will provide will do a search on Google with one click. At that moment you need to search for a site with the product information. I need the price by hour for a batch of 200 products and also the time you expect to work on a batch of 200. We will have at least 50 batches in the upcoming 6 months. So this can be a recurrent job for someone who works correct and accurate. We are planning to select 3 freelancers, so each has a batch about each week.