Yes, the trunk tub will fit with the wider condensor. It is height that is the problem. Here is my version of larger condensor retrofit. The larger condensor was the single biggest improvement in temperature.
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.