I acquired this nice compact (just 6" across) VDO gage cluster a while back.

Picture here
<
https://picasaweb.google.com/starwagen/GuageCluster?authkey=Gv1sRgCMzA8NXO1-eX-AE#
>
 I'm running into trouble trying to figure out what sending units I need to
install this in my '90 Westy.  Can anyone either provide the data on the
sending units or point me to a website or vendor that can give me enough
info to get started?  I have planned on hooking the temp gage to the auto
trans and the other two to electric and oil pressure.