For a decent mechanic changing a cambelt and water pump is a piece of cake..Any mechanic who has done an apprenticeship or has had good training it would make no difference if he was working on a van or a car..Mechanically they are both the same... I had a cambelt and water pump change at a local garage with extremely good reputation and feedback..Cost me £325.. one thing though I won’t be changing them again after another 4 years and 19000 miles after what I have heard regarding VW uk and VW in The rest of Europe...VW UK seem to be using us as a cash cow where VW in Europe say change them at 10 years...