If you are wanting Spoked wheels the 650's came with spoked wheels on the 1980 Standard model and the Comstar's on the 1980 Custom.
One thing to note the spoked wheels do not have the same spacers for the rear hub and only one disk on the front. I would check David Silver Spares in your neck of the woods as he has tons of great stuff for the 650's I even order from him on occasion and I am accross the pond as it were.