magnum 500s on a dart?

Would have liked to run them on my '68 Dart. Bought the wheels and tires for $650.00 and was "assured" by buddy they would fit my Dart. As I got them late spring, just put them away until very recently. Found they don't fit my small bolt pattern. Phoned buddy up to buy them back and guess what; he doesn't have any money. Surprise, surprise!
They are great looking though and I was really looking forward to having them. My choice before Magnum 500's would have been Keystone Klassics; they are close in appearance but still different enough. Really like the looks of Cragar SS wheels even though "everyone" has them.
Just my two cents worth.
Cheers Paul