Hi Larry,
thanks for the info. I prefer to find something in Europe, as that is where I live, so it saves shipping, customs duty etc, but the right thing at the right price outside of Europe will definitely be considered. I am preferably looking for something De Tomaso correct, but period correct is also O.K. It depends what is available. I want something with the bolt for screwing onto the chassis, rather than just the lights with a housing, but no means of fixing them. The dream scenario, is what is in the Pantera GTS supplementary catalogue (see picture below), but it seems they are few and far between. However, the ones similiar to what you showed are also fine.
Cheers, Tim.