I agree with Purgatory that you should find an expert medical oncologist to help you treat your disease.
You current stats suggest that you could look into getting one of the newer scans, whether C11 choline with Dr. Kwon in Mayo Rochester, or feraheme through the Dattoli clinic. For cases with quickly rising PSA, these scans can often locate the trouble spot and allow curative treatment, whether through surgery or radiation.
Check out this link about
Dr. Kwon's experiences:askdrbarken.wordpress.com/2011/12/25/c-11-choline-petct-scan-dr-eugene-kwon-mayo-clinic/
Plus, there are many new and exciting treatments either being offered or are on the horizon, so don't despair. You have many, many years left to enjoy life.