not long after Larry passed away and I was getting ready to move up to Idaho...I got new tires for the rear of the truck (had them put the older tires on the front and the new on the rear) later that summer I noticed that the hub cap was gone when I didn't know could have been when I had it in for the new tires or later who knows so I went to the tire store they looked in there bin of hub caps and found one similar. not just the same but close enough I've forgotten till now
so that is a thought go to the tire store see if they have any laying around similar to yours
sheila