Bigger brakes on a 1.8tsi ibiza cupra 6P

[1.2turd]

So guys, 256mm rear brakes off numerous platforms fit our cars. But unfortunately 256mm brakes from a MK1 audi TT Quattro do not fit due to the carriers.

I know that the callipers and carriers fit from LCR's, Skoda Octavia VRS and 2WD audi TTs so im wondering if its as simple to swap over the carriers?
Thanks.