I left this alone earlier today thinking a shop on repairpal site would be in the area and jump on this. There is a link at the repairpal home page for "Find a Shop" for your area. Have you tried that yet. You can also ask a trusted friend for a shop they trust and have them go with you on your first visit to introduce and that also helps when a repair shop has a regular bring in new customer. They will put their best foot forward for you. Good luck.
Our shop, Foreign Affair in Santa Clara, regularly performs scheduled maintenance as well as more comprehensive repairs on NSX's. Since the NSX's introduction in 1991 we have performed service and repairs for over 100 different NSX owners. I owned a '92 NSX for 10 years that we used to demonstrate the Comptech Supercharger kit, as well as suspension upgrades. You're welcome to come by for a visit or call and ask more specific questions. References from NSX's owners can be provided.
Steve Cook, owner