A toast (of red wine) to your "undetectable" PSA result after two years!
And congratulations on the girls' graduations! AND on longevity of coaching (I've coached 15 seasons combined basketball  and soccer, but I'm done.)
Curious, your doctor said you "...only had about 30% chance of walking away when this adventure started"? I'm baffled about this. I don't see anything in your pre-ops stats which would come close to indicating this. Even you post-op results; while your Gleason was aggressive, you had no surgical margins and absolutely nothing posted here to indicate anything but "organ-confined disease" (OCD).
Oh well. Another toast!