Not sure if it's well-hidden on Youtube, was taken down, or if I just suck at searching.
There were a couple clips of what I'm told was a late 80's Great American Bash. Ron Garvin had taken a camcorder backstage and got some great candid footage of the Road Warriors, Dusty, Sting, Cornette, etc.
I find it hard to believe that they had planned to have the storyline go that long. It's a bit ridiculous. That WMX8 logo wasn't invented until about the summer of 2001 when they began to hype the event and that storyline ended in 2000.