Larry is quite right. Even though the Pantera paint codes are still available, they were long ago purged from the files at DuPont, etc. So far as I know, Mangusta and Longchamp paint codes do not even exist and wouldn't get you anywhere anyway.
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.