Have done scraping in NodeJs, CasperJS Phantomjs, python.
Have done testing and automation with selenium also.
Know to deal with database like mongo, mysql, Elasticsearch.
Also know to handle proxy and captcha while scrapping.
Days need to scrap can be less or more based on field we need to scrap.
Will discuss first what has to extract the details then will start working on it
Will do in NodeJs with Mongodb as database