1.http://www.detailingdynamics.com/contact.html contact Mike
2.http://www.fahonda.com/ closest to Sunnyvale, there are many others but they are farther away.
3. There is no formal structure to meets but you can check the Nocal thread for updates.
4. Stick with OEM, if the tall ones are no longer available you should be OK with the replacement offering.
5. Use SEARCH you will find your answer. (sorry no personal exp) There is a ton of info on "Braking" for the NSX
6. See answer for #1. If you are looking for someone to do it for you.
I detail my own.