Yes, thank you for your very helpful comments and posts. After meeting with doctors yesterday, I agree with the assessments regarding endoscopic surgery. Most doctors seems to use the endoscope as needed, or as mentioned - not at all.
At this point, I'm focusing more on procedures used, once they are in there. Sounds to me, that if nerves are dead, assuming a good competent team of surgeons, it doesn't make much difference. I'm wondering more about techniques used, if the nerves are alive, and running through the tumor. From speaking to the docs, it sounds like there's a good chance,"95%", that my facial nerve, "long term", will not be affected, as it lies somewhat outside the tumor. So that was very good news. Other nerves may be more of a crap-shoot, and for sure, at least one of the two balance nerves is gone, as the tumor grew from it.