Howdy all,
Here are a few places that seem to have alot of rims for sale, some expensive and some in the 120/ea range. I don't know if they will have the type of rims you are looking for, but they seem to have 1000's of different rims from all over.
http://www.rimstop.com/home.asp
and this one,
http://www.skperformance.com/