As Bezozzi mentioned, Jose Oliver Riojas is a school band director in Texas who has a great talent for arranging. That Vaughan Williams stuff we did was difficult but expertly worked out and sounded absolutely beautiful with just a few days of rehearsal. It also helps that we had our very own SaxHotshot527 as the ninja sopranino player in the ensemble. Dude was playing notes so high, we couldn't hear them, but his eyes were crossed, face beet-red, and our ears were bleeding.
Of course that could have been the beer, too.
I'm not a big fan of literature for saxophone orchestra in general, but you NEED to hear the London Saxophonic's CD "Eye for a Difference" which consists of pieces from Michael Nyman film scores arranged for large saxo ensemble. Players include our own Dave Roach (who sounds spectacular on soprano and tenor on that disc), Simon Haram, Christian Forshaw, Andy Findon, and more. This is one of my favorite saxophone CDs, and I've been listening to it frequently for years now. It is rockin' amazing.
Edited to add that Rascher stuff makes up only part of the existing literature for saxo ensemble. Londeix commissioned quite a bit of original compositions and some arrangements for his own Ensemble International de Saxophones. I believe the CDs are available directly from him. Also, Serge Bichon conducts his own saxophone ensemble at the Conservatoire in Lyon, and they have released 2 CDs worth of material. Again, I'm not terribly excited by anything on those CDs except for the accomplished playing of the young students involved.