Nice idea, and there can also be a hard mode and divine mode class to teach about stuff like totems or building a good base for maps. I think instead of a lunch every 15 maps, there should be a test to get to the next rank. (if you fail it, nothing happens) for the test you need to gather x amount of cheese (people in different ranks are sent to a special room with maps for their rank)
I don't think there should be a limit to the amount of saves, but hard mode and divine mode have a different room, like #sham normal, #sham hard and #sham divine

just some ideas .3.

@5290916 - Heres the map! If you need another, go ahead and ask!