Just did this recently and did it wrong. You’re gonna want to space your hub from the wheel or it’ll torque and rub the edge of the brake cavity when you apply brakes. Then it’ll start to wear and fuck up the rim. And you’ll get metal shavings in the rim and then it won’t stop we’ll and then you’ll prob die.
If you want to use the loose bearing brake hub you best use a 12mm axle turned down to a 11 thread with as much 11mm thread as possible. That way you can use those lil 5mm thick nuts and some locktite to set the spacing between everything
I think you might be able to use a later model sealed bearing brake hub but not sure.