Ashman,
Welcome to the forum, your treatment options are as you mentioned W&W, GK/CK/FSR or surgery. Hopefully you can clarify wether your AN is 2.4 CM or MM as this makes a huge difference when choosing your treatment route. Since you are deaf in one ear already it is very scary to have your hearing jeopardized in your other ear, so you will want to try and preserve it at all costs.
What are your symptoms like? Are they manageable? This decision is so tough and even with radiation there are many different types, they all have their pros and cons, but one will be right for you. Make sure you get many opinions as its crucial you try to preserve hearing.
What about fractionated stereostatic radiation? Its many (around 30) small doses of radiation over a period of several weeks, and I think that this small dose might be a better option, not a Dr here just trying to put my 2 cents in.
Also, I had suboccipital surgery and have about 50 % of my hearing in my AN side, but the Dr's can't really tell until they get in there whether its wrapped around the nerve. Another option could be to have the surgery, leave some of the tumor on the nerve and then do radiation to "kill" the rest of it. Again there are many options and there is one that is right for you.
Good luck with your decision and we will be here if you have more questions or concerns.
Take care,
Liz