I am an experienced web scraper, have handled various scraping assignment demanding 10,000 - 10,0000 records without getting IP banned using proxy support.
For screen scraping, I can parse any visible text from any websites, regardless of heavy Javascript/AJAX issues using headless browsers like phantomjs and casperjs.
I am a linux expert will configure scraper to use cron job for update at regular interval.
Regards, Harsha.