The only Aikikai Hombu dojo that I know of is in Tokyo Japan
Ok all kidding aside; have you talked to any of your old teachers? I'm sure that Claude knows of someone. He is a Shihan afterall, and the few times that I have met him he seemed like a pretty friendly guy. You could also try the USAF, Birankai, or ASU websites. They are all slightly different stylistically but all Aikikai.