You're probably going to try making your own, maybe by water-cutting stainless steel plate. If successful, know that the factory attach pins on the back are not really necessary if you have access to Gorilla-Glue (urethane adhesive) or RTV. This may simplify your job. Note also that most of the vendors have recycled OEM badges in stock. Tell them you don't care if the pins are broken- such badges might be cheaper.
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.