Plugin Advice

Good Morning,

I have a customer who has a unique need that I cannot locate a plugin to perform, what I think, would be an easy solution.

This particular customer has a website that has events, I currently use the event tickets plugin, however, when a customer wants to purchase a ticket, there is ALSO a digital manual that each customer needs for the class so they can print it prior to attending.

So, I am looking for a plugin that can do the following. Show an Event, allow users to purchase a ticket, after they get the ticket, it sends them an email with the manual that is associated with that class.

Any ideas?