Tips for rebuilding early-a hinges?

I looked at the pictures of hindge pins and bushings in that other thread. It don't look right to me. The knurled portion of the pin is about to be driven into a bronze bushing.
I rebuilt my hindges with a similar kit. I too had to run out for a drill bit to bore the holes for the bushings. Those bushings have flanges which should be sandwiched between inner and outer hindge halves. One installed from top down and other from bottom up. Therfore I had to grind a little clearance for those flanges from the inside of the outer hindge half.
The above may not make sense in reading. It makes more sense than vendors selling repair kits with no instructions (not even rquired drill size).
Just like the solid state I.V.R. ...
there is A right way and MANY wrong ways to do everything.