You may want to get the second PSA increase at least 14 days apart to qualify for Provenge and then do Cyberknife and Provenge concurrrently. ADT can then be done after the spot radiation.
That was a winning formula for me.
You can google a couple of concepts, "abscopal effect" and "oligometastatic"
pcri.org/the-abscopal-effect/www.aboutcancer.com/oligomets_milano_0108.htm