452360 data verification and database maintanance

i need someone to go over my database of products, and verify the data, and add additional data i will give you all the info in my current database and you must reference other sites to see that the data is correct, and add additional content that is relevant to the product. you will also be verifying that the image is correct for that product. i have around 20,000 products to do, and will do them in chunks of 2-5 thousand. this is very detailed work, and NOT a sloppy copy paste or scraper job. worker must be diligent, good at researching products on google or other sites, and a very DETAILED person. accuracy is the most important thing in this project, no mistakes.