You are in good hands. If you have metastases in your bones, then prostatectomy is pointless and you would need to go on Hormone Therapy and potentially Radio Therapy as well, ASAP.
The PET-PSMA scan is state-of-the-art, and once you have all the test results through, you and your clinicians will be able to see the way forward.
I must say, in my limited experience, prostate cancer usually tends to spread to its adjacent pelvic bone first.
Stand by for plenty of waiting, but I think you’ll come out the other end OK.
Best of luck.