Delayed Gmail Autoresponder

I need a Delayed Gmail Autoresponder. Basically, what I want is when a person emails me at a Gmail account that i state, then an auto response will send after a time i specify (ex. 2 hours later). This should be hosted on a server (backend) I want to use MySQL for a database consisting of: GMAIL ACCOUNT TIME before response HTML RESPONSE The php coding that should be used is an IMAP protocol. I want the script to be built as quickly as possible. I'll give you a bonus if you can finish it fast for me. I have pictures of what i sort of want the script to look like.