I have not seen any reasonably-priced 15 inch steel wheels for our Vanagons.
The advantages include greater LT tire availability, but I am not sure if the diameter is a problem with  fender/brake clearance or the storage in the front spare tire clamshell.
IIRC the overall diameter increase is neglible.
VanCafe has some,I believe, but they are only slightly less expensive than alloys.
New alloys on a fixer-upper Westy may not be the the best way to upgrade to  15's.
Any ideas? TIA

George in snowbound Grand Rapids, MI.

 Considering that a 215/75R16 has occassional rubbing issues
> on Westy
> Syncros and my Passenger Syncros. I would rate 225/75R16 as
> a
> problematic tire size for a stock vanagon Syncro.
>
>
>