When I got my MBA 15 years ago, there was an entrepreneurship course in which students had to write business plans for start ups. Even though there was an oversaturation of restaurants in Ithaca, the single largest category of business plans was restaurants.
There also was a consulting class where students could do projects with local businesses.
In both of these, there were also some students who turned these into real businesses, some before graduation. If you use B-school students you may get one that wants to go into business with you or independently. This could be a good recruiting tool for you.
For the entrepreneurship class, which was also open to students from the Hotel School, all the business plans were kept on file in the library for subsequent classes to use as references. You might want to check to see if there is a file of old business plans for you to peruse.