I only know of a couple of the importers, Stroupe, Staufer and Wilkins I think.
I'm not sure why the sunroof devalues the car. Maybe because it wasn't factory?
I'll bet you that Roland doesn't think that his Targa is worth less.
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.