Random, Ya I think you should hold onto it. Keep us posted though. I was a friend of Randys from Burbank starting from 1970 in the 8th grade til the end. I have a page on F B 'The House that Rhoads Built' We are a very Rhoads Family based page. Check it out when you get a chance...
Randy had on a red suit...that would be Port Vale Heavy Metal Holocaust, Aug 1, 1981, he wore black during Day on the Green.
Would this be the video??
http://www.youtube.com/watch?v=ATGxkSkd__A&list=PLk-KRsyEPC57c_Lq3YhvaD54wk10C_LBv&index=2
Of course it's worth the effort. Weather or not you sell it...it Ultra rare & part of Music History. Never before seen. I'm sure you will find someone & I may know just the person ...