Dodge Ran salvage yard, LA / Las Vegas

I'm looking for a wrecking yard that might have some 20" steel spare rims to suit a 2002 + Dodge Ram.I'm from Australia and I will be in Vegas for SEMA and then a week in LA after SEMA.I don't require tires just rims.If anyone has some details it would be appreciated.

http://lasvegas.craigslist.org/pts

check and search that link im sure theres a dozen sets on there