I'm a keen amateur classical guitar player who prefers playing in groups to playing solo. Finding ensemble music that you can see and listen to before you buy is not easy, so I started arranging my own. Most arrangements have been done with a particular group of players in mind. If they are of equal ability the parts are well spread. If they are of unequal ability the lower parts tend to be the easier ones. A glance at the bottom line will tell you which are which. I have not routnely added parts, but if you would like them let me know.
Dont forget that you can cut down wasted rehearsal time by playing along with the Sibelius soundtrack once you know your way around your part!