Here's an ad for Fred's GTS that he was aligning.
Not sure if it is still for sale or not - but possibly, since the ad was from '76.
Rocky
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.