I just spoke to Larry at PPC, who did not have tracks. Neither does Wilkinson, or any other vendor I tried. I'm going to use Recaro seat tracks, which look like they will pretty easy to adapt.
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.