The email template library currently does not have any of the "Hi __, I really like your profile...." email template messages and this is for two reasons.
First, I am not a big fan of the template that tries to flatter the person you are inviting to connect by saying they are interesting or have a great profile and would like to connect.
Second, I am not a big fan on connecting with people you want to sell to on LinkedIn. In other words, I don't like the send invite to connect, they then accept, you then try to sell to them. If you want to sell to them, sell to them without connecting. I will include below a webinar video where I explain this and my recommendations for how to prospect on LinkedIn.