Well, they're not really excerpts, they're the parts. I don't know about the 89 dollar thing, but Hal Leonard is selling CDs of the parts (all the parts for each piece) for 19.95 per volume. The first is Beethoveen, Schubert, Mendelssohn, Berlioz and 6 others. All the parts, trumpet and cornet, in PDF format.
Vol. 2 is Mahler, etc. and Vol. 3 is Brahms and a ton of stuff.
check out
www.orchmusiclibrary.com
I had to click on the foreign part of the library links to see the rep, but it's pretty amazing. Would have been nice to look at the 2nd part to Mahler 1 before playing it last Tuesday...now I'll be able to do that sort of thing.
Joe