I must be lucky , I’ve parted 3 -69 sport furys , 1-70 fury convertible and the wheel trim I removed from both years of cars was identical . I was at desert valley auto wreckers in Phoenix Arizona and got the wheel trim off both 69 and 70 furys for the nice set I have on my car now. I would greatly appreciate a close up picture of your 69/70 years of trim and see the profile differences . These are the only pictures I currently have of the wheel trim on my 69 sport and a couple of my 69 sport parts cars that I parted and inventoried to my sea can.
You are extremely lucky. Those are just what I am looking for. If you or someone else just have an idea where to find I would be glad to hear. And if they fit it wouldn't matter if they are out of -69 or -70
Here is the set off my '69 Fury Convertible. They are pretty rough but it gives you a good idea the shape you're shooting for. I've bought a few used sets mostly e & b body but they all seem to have jacked up mounting holes. Look close when you do your shopping. Mine here had no less than 8 different size screws holding them on. In the first pic it's LF LR RR RF.
Then I got a close up of the edge and a rear view shot. Good luck and happy hunting.