WANTED 15x6 Steel Wheel, Part #3580 064

[Wile E Coyote]

I'm in search of a 3580 064 15x6 steel wheel for the spare on my 1974 Dodge Charger SE.
Any tips, leads, info or advice is appreciated!
Thank you,
Ron

15x6 Steel Wheel, Part #3580 064

 

[newmexguy]

Mid seventies base truck??

 

[Wile E Coyote]

Mid seventies base truck??

I was hoping this would strike up some conversation. My 74 Charger calls for a "64" 15x6.0 stamped wheel spare. I can't find a "64" wheel in the 74 parts book. In other internet searches, I find the 3580 064 stamped wheel as a 6.5" wide wheel. I'm seeking any help figuring this all out! Thank you!