kappa85, I hope you are successful in finding Boyd. I have a friend who searched for years for someone he met in a brief encounter. This farang even hired a private investigator to help him in his search. Finally he, the farang, found an address or letter which finally re-united him with his lost love. They are now back together after years of separation.
Even for me, I lost contact with my first love in Thailand for two years who I first met in 2000. A friend found him for me and we re-united.
Good luck/Bonne chance.