Well, for one thing, you are not supposed to start training the bird until it's a juvenile so your idea is not going to work because, by the time the bird is responding consistently to the training, it will be already one year old or older.
I don't know what you call 'the essentials' of training but, if by this, you mean simple cohabiting needs like 'Step Up' and 'Step Down', no biting, etc. no training is necessary - all babies learn to do these on their own.
The main thing you need to remember is that, if you get a baby, you will need to be home all day long for the first 4 or 5 months because, in the wild, babies are never alone and that is the only way they grow up healthy, happy and well-adjusted. You also need to figure out what species of bird you want because training aviary species (most of the small species are aviary) is pretty much a waste of time as they all need companions of their own species to be happy and, once they get one, all the trick training goes out the window
They will trust and love you and will be very happy to spend time in your company, kiss you, etc but they will not be interested at all in doing tricks for you unless you use hunger - which, of course, it's not an option.