I hear a lot of posts about Mercedes wheels on a vanagon but take a look at
this...

http://cgi.ebay.com/ebaymotors/aw-cgi/ebayISAPI.dll?ViewItem&item=401608690&
r=0&t=0

Anyone know for sure that wheels from a ford/merkur Scorpio will fit...

In Europe the merkur Scorpio was known as the Ford Granada.  I vaguely
remember that its predecessor model had wheels or tyres that vehicle fitted
the type II bus I had at the time ... I remember some connection as I think
there was something pretty obscure about the wheel/tyre size and the fact
that both used the 'same' size was significant at the time!!.

Steve