In the Orlando area, both Fountain Acura and Don Mealey Acura have NSX master techs. The master tech at Don Mealey is Nabil Armily but he is out sick with an injury. I'm not sure who is currently the tech at Fountain Acura (they bought out Courtesy Acura) but call and talk to Melanie in service and she can give you his name. You will receive a 15% discount on parts and service if you are a current NSXCA member at either dealership. This is a significant discount on a job like a timing belt replacement.
For independent shops, call Bob Fournier at 407-898-8002. He and his master tech Carl have done several timing belt changes, mine most recently in May. Although he doesn't have a loaner car, he may be able to arrange for one at additional cost. You may want to get an estimate from both his shop and the dealer to compare prices.
If you're in Orlando and want to meet up, please page me at 407-769-6017 or cell 407-832-0176.
Wei-Shen Chin
Southeast Regional director
NSXCA
President
Florida Chapter