Whilst your on this subject this seems relevant to post here
My new build uses the Rear bearing from Rover, with a VAG drive plate.
If your doing a new build with a VAG donor, the VAG drive plate needs machining down a little to fit with the new rear upright.
The spindle needs a little skimming of it (in the region of 0.5 mm) and the plate itself needs thinning so that alignment of the calipers is correct.
Contact Marlin if you need the mod doing.
Cheers
Steve