I have some 15" Mercedes 8 hole alloy wheels as spares and think bolt on
spacer/adapters is a better way to go too.  I found this website that has
25mm ones for $44.75/ea

http://www.adaptitusa.com/index.asp?PageAction=VIEWPROD&ProdID=165

>From: BenT Syncro <syncro@GMAIL.COM>
>Reply-To: BenT Syncro <syncro@GMAIL.COM>
>To: vanagon@GERRY.VANAGON.COM
>Subject: Re: Re Mercedes Wheels
>Date: Tue, 21 Feb 2006 01:24:13 -0800
>
>On 2/21/06, Graham Challis <gchallis@centum.com> wrote:
> >
> > Hi John,
> >
> > I'm a longtime lurker on the vanagon list and have a 90 GL.  I also have
>a
> > 99 ML320 with a spare set of the original wheels (I just put some 17"
> > wheels
> > on the ML, and have Go Westy 16" rims on the van, otherwise I'd be
>trying
> > to
> > adapt the ML wheels myself!).   I'd be interested in what you find out
>re:
> > offset, machining etc..  If you, or someone else, is interested in my
> > wheels
> > maybe we can work out a deal.  I'm in Northern Cal (S.F. Bay area).
> >
> > Graham
> > 90 GL Auto - country homes conversion
>
>
>
>Graham,
>
>The ML 320 wheels are easy to adapt. Just get a bolt on spacer to
>correct the offset and get smaller tires. The ML's 255/60/16 is too tall
>for
>Vanagons. I have sets of these wheels too and have used them on Vanagons.
>My
>wheel adapters came from Fred Goeske at www.wheeladapters.com. $65 each.
>Nothing else to buy.
>
>BenT