create a full on micro school vs semester-month abroad at Monestevole?

Filippo alone cannot make a school, if more people are willing to help him than both projects can be realized.

Building on the Earthbound 1-month high school experience to offer a 1-3 month immersion for other high schoolers would be a logical next step. There would also likely be an immediate need from a host of schools from around the world. It would give you the opportunity to check out how you feel about the whole process, instead of making a longer term commitment to families upfront.