$100.00??? That chromer must have more business than he needs. I just bought a set of 4 from Classic Parts and was surprised to find they weigh the same as the original caps. In fact they look pretty good and at $30.00 each you can tell that chromer to chrome himself.
http://www.classicparts.com/prodinfo.asp?number=64-019
One thing to remember these dog dish hubs will need a nodule or a clip on the wheel rim to snap on to. I made the mistake of buying late Camaro wheels without the nodule. Therefore I have to add the clips to each wheel. If you're using the original wheels you shouldn't have a problem. As it has been said here, "look before you leap".
Good luck and send pictures.


~Jim