Calling All Guitar Heroes

I'm working on a project where I need to reach some rock guitar heroes. Some of these guys were staples of the eighties and are now not as well-known. Some remain rock stars on certain levels.
I'm working through various personal websites, record companies, publicists, and other gatekeepers to track these guys down. But if anyone knows anything or has any tips for how I can reach the following musicians, please let me know. Plus, if you've got any other guitar hero suggestions, I'd love to hear those as well.
Reb Beach
Carlos Cavazo
Ace Frehley
Paul Gilbert
Brad Gillis
Jake E. Lee
George Lynch
Mick Mars
Warren de Martini
Slash
Vinnie Vincent
Zakk Wylde

