There is a soundboard tape of them and others from the 1969 Seattle Pop Festival in Woodinville WA, but it's still in the hands of an eccentric Japanese collector last I heard.
They apparently stole the show at that festival, and blew The Doors literally right off the stage. I remember reading that a local LZ collector in Seattle pissed off the sound guy that kept the tape in negotiations so instead he sold it to a Byrds collector for 10K who then traded it for rare Byrds stuff from the Japanese guy. A real shame, but maybe someday it will surface. I highly doubt the Byrds collector didn't make a copy.