National Lampoon's "Vacation" Soundtrack (1983)

I am looking for this soundtrack. I am a mobile disc Jockey and have an upcoming wedding on Nov. 3rd. The groom has requested that I play the song "Holiday Road" by Lindsey Buckingham. Can't seem to find this song or soundtrack anywhere.

Any help would be greatly appreciated.

crackerjack, October 27, 2006; 9:28 AM