What I know is you can buy the front kits brand new including everything for £620 finished in Red from davehawthorne @sere seat in Ireland ,they are genuine OEM VAG parts.
I bought these and then sold my fronts for £175 on the internet.If you buy from Seat they come in red , Vw in blue,Audi in black .
I bought a set off fantastic rears on here in red complete for £200 . Advice was 80% off the braking was done by the fronts so it made sense to put new on the front .
I sold the old brakes and recouped £275. If you buy secondhand you could need to replace disks and pads early so what is the point ? new fronts is the way forward .I can forward you the parts list if it helps but its prob best to just ring dave at sere .The kit includes eveything new clips, hoses, dustshields ,pads calipers, disks ,etc