Matthew,
Thanks for that! Using the screen-filming technique is something I have considered, but I figured the quality would only be as good as my monitor's output and camera intake, almost like a copy of a copy (correct me if I'm wrong). Ultimately that might be the solution, but I was thinking more in terms of direct transfer like it's done for feature films. Long shot, I know, but someone must still have the equipment to do this and willing to give it a shot.
Here's what I'd like the output to be used for:
Putting a 60-second motion graphics reel onto 8mm film to be viewed by a toy film viewer, distributed as promotional materials at trade shows, etc.