I recommend waiting until it's weaned before you jump into the deep end.
You are new to parrots, so you probably don't really know how hard it is.
The food temp and brooder temp has to be just right, you have to feed just the right amount and let it completely empty at least once or twice per day to avoid sour crop.
And it's best to hand rear with more than one bird, so they recognize their species.
You have to be there at all times during the day, so if you have long work commitments....
I'm a breeder, but I'm not going to attempt hand rearing just yet. Maybe in a year or two if one of my nests is overloaded with chicks. And I've only just started breeding.
best way is to leave them with the parents and handle daily from day three inside the nest, and day fourteen outside the nest ( budgies ).
So do all the research you can, before you make that decision.