Hiya 7Golf,
Both VW Heritage and http://www.customandcommercial.com stock replacement dashes.
however.....they come coated in a textured paint which has to be smoothed down. Whilst they do state that they fit either RHD or LHD vans, they have to be modified somewhat to fit the RHD vans.
I bought one for my last (late) bay, as the dash that was in it was full of stereo and clock holes (!) but in the end I managed to find a good original clean uncut one, and we used that one as it was less labour intensive than the new replacement one.
that said good original ones are hard to find, so depends how much fiddling about you want to do, and whether your van is LHD or RHD......
good luck.....!
Carole