Content Copywriting or Content Writing

I am looking for someone to write information on 210 manufacture and 135 vitamin and herbs. I will provide the names of the manufacture and the list of the herbs that I would like information for. I would want this person to have good english skills and to research the list and provide me with as much information as possible. Please quote me a price and the time it would take for this project to be accomplish. If you have any questions please email me. Thanks