GOS1 (Gift of Screws Demo) is the obvious thing that you'd want to get your hands on. I know someone has that to share. If not, I'll upload mine.
And here are a few more little things to keep you occupied and happy for a whle:
Crystal (Live in Tuscaloosa, 1975):
http://www.mediafire.com/download/mk...a%2C_AL_75.mp3
Lindsey's infamous stumble at the Grammys :
http://www.mediafire.com/download/dr...le)%5B1%5D.avi
Go Your Own Way isolated tracks:
http://www.mediafire.com/download/75...n)_unknown.mp3
If any of these don't work (due to Mediafire cracking down), let me now, and I'll use Sendspace