There's a sure way to make it "blow the mind of the customer". That's to create it in HTML, which may be a little more work, but it can bring many aspects into the design that you cannot do in FileMaker. Also, if there is access to the FileMaker Web Server, you can send a live link to the customer that can be customised for each individual customer.
Using a combination of PHP, SQL and FileMaker, the report can be automated and the customer can have a report any time they want...
Food for thought anyway.. That's what we do for many customers, where their clients want reports on a regular basis. No PDF required, so no attachmentt etc...
We've got a few web developers on staff if you need some development..