I was searcing the web for the exact same problem, I have hit lucky though, my uprights were from AS motorsport, and they are slightly different design, the mounting plate portion is totally round, so I have found that I can just rotate my bearing carrier to the desired position, punch, drill, and tap, et voila I get the calipers in a better position
couldnt for the life of me work out how on earth you got that handbrake cable to route and actually work in the designed way of the book, not that the book covers much regarding the braking section anyway