What format are your "scanned records" PDF's, JPEG's or ? Are these single page documents or multiple. If you have single page documents, you can use containers or web viewers to display the single page of the document on a filemaker layout. If you then pull up all the related records in a found set, a PDF of this layout might be able to combine all your information in a single layout and you can attach this single PDF to your Email.
Your other option, especially if any of your documents stored in containers are multi-page, is to invest in an email plug in with the ability to send email with multiple attachments.
I think i'll go with the PDF option, you sir are a genius!