it is a waste of time/space.
Well not if it actually works as opposed to your solution that would not.
Is there any other way of building a power driver
Yes but it brings it's own heat sink problems as it is not electrically efficient.
This is because that is a linear regulator, the ones posted were switching regulators, they take much less power and produce much less heat. And before you ask why you can't make a switching regulator, it is because they take quite a bit of skill to design ad lay out correctly on a PCB it is not the sort of thing you can knock up on a prototype board.