What’s so difficult about replacing the bearings? It helps to have a mate that’s got a press - that’s a must for this job!
The rest is very much the same as any other bearing replacement. And you know what sort of quality bearing you’re replacing it with since you’re the one purchasing the bearing and installing it.
The used hub method has its merits. I reckon there’s a point where you get over hunting down a used hub and collecting dead ones on the shelf.
All the best with it!
Cheers
Bennie