2. Do an outreach with a professor
Professors who are deeply committed to their faith are often thankful for the opportunity to be vocal about their faith. They may not be the main speaker; perhaps they will emcee or share part of their story, but do include them in speaking opportunities.
Do the heavy lifting. Treat them as you would a traveling speaker: do the legwork of getting the venue, publicity, etc all done, and then have them speak. Don’t expect them to do any of the logistics; they won’t have time to do it well, and it’s not the best use of their time and talents.
They can provide some gravitas in a team meeting at a Greek house; they may help out at a table where you are passing out written articles.