If you are shooting for absolute correctness, sometimes the wagons had wider rims than the sedans. If you can't find any in the local boneyard or ebay, call some of the wheel manufacturers like Stockton wheel, or Vintiques, or any of the ones who advertise in hot rod magazines. They build more than custom wheels, and can probably sell you a brand new set for close to what you would pay used. And they won't bent up as used ones potentially could be.

Don