Rallyes

Dont worry, I found some 4.5 center caps on e-bay that are the old style. I was going to pick some up myself.
Never fear, you can still get them.
These are expensive, but as an example...

http://cgi.ebay.com/ebaymotors/MOPA...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories