a) create a new hubcourses.moodle.org (or anything you like)
b) create a cron script that browse all new backup courses and run /backup/lib.php:import_backup_file_silently() or anything helping to you to restore a Moodle 2 course. The goal being to add a demo course to hubcourses.moodle.org. Automatically hide the course (maybe restore it in a category only available to Helen).
C) Helen checks the new course in the hidden category. Helen can valid course on Mooch and move the course to a visible demo category. Helen can edit the demo link in Mooch to redirect to the visible demo course.