Peter,
It would be nice if they were.Theo (the seller) sends you Rover or Volvo calipers (with bleader holes at the bottom !) instead of the correct Osca ones.It is very important that you figure out if the calipers will go in the front or the rear of the wheel so you can figure where the fluid lines should go.
Theo wanted me to run a line outside the caliper from the bottom left to the top right,something I hated the thought of.One good rock and the line could easily have been damaged.Girling limited the amount of external lines to an absolute minimum which sounds much safer to me.
Grant