Here we go. Since my wheels were true Alcoas and not ford wheels, no one makes an after market from center with an alternative mounting style. The rear caps mount with a steel ring instead of the cheesy plastic tabs ford used. The ford wheels are notched for the tabs. So I had the guy at Hub Cap Annies take two rear caps and cut out the centers so I could still reach my hubs. He did an awesome job and I think they look great.
Now I have to get some polish so the wheels look as good as the caps.