It's likely no one's replied to your posting(s) because this subject has been discussed ad nauseum, in this forum, and there's nothing new on the subject.
Call Marino at Pantera East: 800.875.2748 or 727.381.1151. He has the wheels you want, in stock. They are the closest reproductions, lightest and least expensive too.
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.