... I meant living in the dojo, training at least twice a day at least five day a week and having a chance for regular personal exchange with the teacher.
As I tried to say: This ist possible.
There are kind of uchi deshi modells with different teachers I know.
There is even one dōjō where one of the uchi deshi doesn't have to have the money to afford this time. On the conrtrary he get's paid because the time as uchi deshi is designed as "Lehre zum Sport und Fitnesskaufmann".