I understand you did monotherapy. Before I would look at surgery, I would determine whether IMRT/IGRT would be in order much like failed surgery salvage radiation therapy. I think post radiation surgery misses the point and
opens you to an extremely high risk situation regarding efficacy and side effects.
Perhaps you are systemic and HT/ADT is indicated. Why wait? Many of us have been and are on HT and there are worse things. If you are likely to do this in the future, then why not now??
As you can see I did HDR, but I was high risk and hit it with much more. It may be that you need to jump on this now. Many oncologists posit that the harder you hit this stuff at an early stage the better you will do. Why wait until it has strengthened and is harder to kill?
I wish you well,
Jack