Forgive me for jumping onto this, I'm afraid I don know the answer about the pipes but, do you know if you will b using a mk3 power steering pump or an r32, I don't know if the r32 rack fits in a mk3 or if the r32 pump is suitable for the mk3 rack,
I would clear this up first, unless you know this already an I apologise for wasting your time in advance
I only say this as when I did a polo GTI conversion in the wife's lupo, I was at a crossroad wheather to run the polo GTI ps pump or the pump that was with the rack on the std car an if i uprated the pump what size belts required would be diferent as the pulleys where no longer a matching set, an the belt would need to be longer, after quite a lot if searching an chats with some vag specialists it turned out that if I swapped the bracket that held the alternator an ps pump from the original engine I could use the std aux belt size from the original engine to run the pulleys.
