If I remember right, I think VW don't use any EVEN size bolt/nuts bigger than 10 mm.  i.e. after 10mm, it's 11mm, 13mm, 15mm, 17mm, 19mm, 21mm. But some after markets stuff like the shocks do use 14mm.

Anyway, from you list of tools, the only addition I would put in there is a good set of vise-grip.. 7" or 9" is the most useful.

Yau-Man Chan
87 GL