I noticed earlier that in the Gold/Silver sound files, the Pokemon sounds play in the Johto/Kanto wild Pokemon battle music.
I could try to record them myself if I can get my mixer fixed. I know of a cheat code that will allow me to battle an egg. Since eggs make no sound, recording the battle music myself would be better.
The overall sound quality of the khinsider recordings is very good, I honestly don't think I'll be able to record with the same quality.