Would anyone have the offsets for the hole that has to be drilled to remove the lock cylinder on a T3?

It has to be drilled from the top, where you have to remove steering wheel, blinkers, wipers….. to get to it and not the bottom where you just have to remove one cover (%^^**%@) doesn’t it?

Lent my Bentley to a mate and he’s not answering the phone

Many Thanks
Brett