I think most of the vendors offer the exchange rack, I know Larry Stock carries them. They used to run around $300 if I recall correctly
If authenticity is valuable in your own mind then I'm sure they would rebuild your own rack for you too. Not that there is any way of telling whether a rack is original to a specific Pantera.
Julian
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.