How hard is it to find magnum 500s

Here is the set of 1976 14 x 5.5's I bought for $100.00 for my 1970 Dart GT.
Remember; Magnum 500's are big bolt patern.

2007-03-22 70 Dart GT (0).jpg

I have bought new center caps for them for $125.00. I also bought a set of red Dodge Pentestars to insert in the caps for $25.00. As soon as I get them painted I will post pics on my restoration thread; http://www.forabodiesonly.com/mopar/showthread.php?t=43550

Later,
Bruce B.

2007-03-22 70 Dart GT (0).jpg