Help creating print service to email PDF in 3rd party app

I need help creating a print service that will create a PDF of whatever I’m looking at and email it to a specific email address using Postbox. I have a general idea that I’ll need to use Automator to create a print service that runs an Applescript. I know that Postbox has some limited Applescript capabilities, which should be enough to do this. I have created a print service that opens an email message in Postbox that contains the PDF as an attachment, but that doesn’t address filling in the “to” address and sending the email.

I don’t use Mail, and don’t want to have to launch it just for this.

I’m willing to compensate someone for creating this print service, as it will save me a lot of time. Or, if someone tells me how to do it, I can capably use Automator and even ScriptEditor.

Thanks in advance, Automators community.

I should add that I have and use Keyboard Maestro and BetterTouchTool, so can call on either of these to make this happen.