As far as I know, you have to self fund base training as well and most of the applicants are eligible for reduced base training (4 takeoffs and landings). It's a good question by the way, I did not think about it nor if they would sell base training at a better price, so I didn't ask at my interview. They were quite open and would reply to all questions.
Maybe someone else about to do the interview could ask and report back.
I made it to the final stage.