Hi, Jimbo,
The previous posts have covered a lot of your questions and concerns. I would just like to add a simple what-I-think-is factoid, which is that we heal more slowly as we get older, and therefore microsurgery is harder on the body the older we are. I believe this is the case no matter how good a shape we're in (although, obviously, the better shape one is in, the better). I say this from fairly extensive experience with my mother and husband both having had brain surgeries. It seems to me that your AN is small. If all else is equal, I'd choose radiation over surgery.... in fact, I DID !!! choose radiation over surgery for myself, in 2007, GK. I was 58 at the time, but even if I was younger, I would've chosen radiation. All is going well, although of course it takes time for the AN to die.
We all make our own decision for our own reasons. I definitely respect microsurgeons and the miracles they perform, but, all in all, in my humble opinion, microsurgery is ALOT harder on the body than radiation. So, if you think the results will be similar, I'd recommend opting for radiation.
As always, I add.... "just my opinion", albeit strong!!
Take care and let us know how you're progressing.
Dana