It's fairly straight forward to remove. The issue is what's left over. The remaining holes are large. To fill them requires welding and repaint. Do a BB search. I think this has been discussed before.
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.