Perhaps the bigger front discs would be better than rear discs.  I have all
the part numbers for the rotors, calipers, etc.  However I am not totally sure
if it is that simple.  I believe that the front wheel assembly is different
also the tie rod ends are different too.  So if you have to change out all of
these parts the kit becomes pretty expensive.  The good side would be
defineatly the better stopping power, the bolt up, stock VW setup, and that
you need to use 15" rims on any van that has the bigger brakes ( I am
smiling).  That is why the alloys I get from SA are all 15" because of the
larger front brakes (and you all thought they were just trying to be cooler
than us here in the US).  :)
If anyone is interested in making this kit happen please let me know.
Ken Wilford
Van-Again
John 3:16