Did you discuss the radiation option with your medical team? In my case, since the cancer had already metastasised to my spine, my medical team and I elected for radiation rather than a radical prostatectomy.
1. I had emergency debulking surgery to my spine at T3, since the lesion had grown quickly and left me temporarily paraplegic.
2. I started on Firmagon and Erleada right after the surgery to shut down both testosterone production and reception.
3. I had radiation treatment to my spine once I'd had a few weeks to heal from the surgery.
4. I had radiation treatment to my prostate 6 months later.
My PSA was 67 when the cancer was discovered; now, 26 months later, it's still holding at < 0.1.
Best of luck whatever you decide. For sure, it's a big life change.
Sounds like you have had a great response to treatment.