ASP website maintance

Looking for a 6 months maintenance for a ASP website with possible extension. I need an ASP expert to be 'on call' for 6 months if the ASP based website is to go down. Must be able to work quickly to get site up. Only about 3-5 hours of work a month, and could be more or less, it depends how quick you work. Will disperse funds monthly and the total amount will be the bid amount at the end of 6 months. This is for 6 months only, but may extend. Must be reachable and must have website back up within 8 hours of posting message, or chat. Thanks, Tim