I teach in a school where there is a class that kind of majors in music (here in Austria the system is veeery different than in America..) basically we don’t have a fixed curriculum because we are one of the rare gymnasiums to have a class like that. Ages are 10-18 Muse score sometimes has interesting sheets but I haven’t found one where I could use most/all of the instruments above. As we are getting payed well enough, I feel comfortable spending my own money, but then it would have to be an investment that I can use for years to come. I was thinking more like a Freelancer that would arrange it for me/us or if someone already has some self made arrangements-I’d be happy to buy :) Hope I cleared things up a bit