Not sure of what other dealers are near by. Unfortunatley Triumph dealer locator on ther web site stinks. A good way to tell if they are a decent dealer is to talk to them and see how knowledgable they are about Triumphs and their views on service, but dont forget to take your BS detector.
I am very fortunate with my dealer. They are Triumph first, Moto Guzzi second.
Soren