Ebay Instant Delivery Digital Products - Automatically send an email through ebay message

I need a Paypal IPN script for instant delivery for my eBay buy now listings. Script will read item title from IPN listener, and e-mail the message / account details to the buyer automatically. For instance, Let's say we're selling Game accounts. If item title League of Legends EUW 30,000IP, script will e-mail the login credentials (username/password) of the EUW 30,000IP Account. If item title League of Legends NA 50,000IP, script will e-mail the login credentials (username/password) of the NA 50,000IP Account. After sending the account details, script will mark it as sent and will not send duplicate to another buyer. It would be nice if it could save date, sent code and sent e-mail address to sql for reporting purposes. Item title and belonging account details should be entered thru an admin menu. Adding more / removing unsold keys should be easily managed.