Script to Files - Email notifications

Hi Freelancer, I need a page with tools and a crontab`s script to monitoring my website. 1. In a webpage, show me the configutations Ping Server Time set up configurations and screen the command to insert crontab in my SSH Client to execute it the command; 2. Historical logs are welcome in this webpage display; 3. In this tool, I want to be notified by e-mail every time there is a change in the archives of my website, for example, files that were inserted, edited or deleted. 4. Options to monitoring Http Errors too; 5. Field to insert/edit a e-mail to receive all Alerts/Notifications; Please send the final price to create this web`s tool and how many days it will be ready. Use the word Brazil in the subject line so I know you read about my project. Thank you, Robin