I'm not going to move for Taekwondo. I immensely enjoy training and teaching (as the most senior Assistant Instructor at our club) but I have a family/home and am not going to move so I can open a club.
I'm most likely to inherit the club when our instructor retires and for that reason having a high dan grade will help (rather than waiting until he retires to start getting higher dan).
Andy, I think that is wonderful to aspire to carry on the dojang your SBN started. My only thought is, talk it over with him. I'd hate for you to have an expectation & he has other thoughts/or plans on the subject.