OK, done. Here's a screenshot.

It looks similar, but a little darker. I'm going back and forth between thinking that lighter text glow is better, and then thinking that the darker glow looks more "realistic." I then tried disabling the RGB Matrix, and this makes it look even darker but with more contrast.

I actually like this! Do you know of a way to decrease contrast so that it looks a little faded and not just sepia?

Thanks for the ideas! I appreciate the help.

Here's what I started with:

The following output is completely from CC3. I cropped it to just the section that I needed, then I added a crumpled paper on a new sheet, added transparency, and then did a custom RGB matrix for the entire thing. It's not 100% sepia, but more like halfway. I saved the matrix so I won't have to remember anything. It fits my needs right now.

Thanks all for the ideas and support!