Rally wheels are pretty easy to find here (MN), the prices will range depending if center caps or trim rings are included but generally they are pretty inexpensive, around $100 bare, quite a bit more with caps and rings.
I have a bare set of truck rallies for $100 b/o and a set of mint Vette/Camaro style rallies that are a 5 on 5 bp (truck) with center caps for $200.