Scirocco Register

I'd like to upgrade the brakes on my 92 scala.
Was thinking 22mm master cylinder, 256mm discs, Golf 16v calipers, Audi 80 carriers or vauxhall carriers??
Now i have been led to believe that the upgrade i want will not fit in my 15" ats cups?
Can anyone shed some light on this please??

Taaa.

Ii think I had the same setup, I filed the caliper down a bit, maybe someone else could confirm this though

on the same theme i have a setup from a mk3 golf gti 288mm brakes. has any used these on there rockos? i was going to try it but my first problem is the wheel are 5 stud on the golf and 4 stud on the rocko. i wanted to keep my origenal 14" snowflake rims aswell so will they even fit??