Your touring set-up would work well for a visiting Spanish class. The rates are in the range that regular students can afford. The private bus concept with the out of the way places you could visit might be a money maker for your village. When I visit Latin America, I rent a car and drive down as many back roads as I can, do not get be wrong, we visit the hot spots but the best things are in the areas that get little or no foreign contact. Last time down the car rental came to $2500 US, about a month, you could rent a lot of bus time for that amount of money. Much of our time in country, a car was not needed, yet the meters ticks over all the time.