A couple months ago when the Graham Panteras vendor publicized his expansion, his flyer advertised something-mil-spec prepped bodies for sale. Price was $10,000 - $15,000 but I don't remember the exact amount. May want to get up with them for more info. I don't have contact info handy here, though. Maybe someone else can chime in with that.
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.