A fellow on the Samba installed 5"x7" (200mm) H4 assemblies in a Vanagon
using buckets adapted from another vehicle that uses this size. He retained
the original inner/driving lights, as these are already Euro-spec.

http://www.thesamba.com/vw/forum/viewtopic.php?t=583876&highlight=200mm+headlights

These can be found here:

http://www.rallylights.com/all/lights/headlamps.html?lamp_diameter_width=763

Doesn't look 100% 'factory' but works well. The old ProjektZwo grille setup
used four of these.

Karl
www.westyventures.com