Bill,
I have always thought of you as a sound bloke so let's get real here.
Here is my personal view, if it offends please remember it is my own opinion and not an insult.
My point is that these lights are consumables and the least thing to consider if one wishes to replicate a "race car".
Now comes my question :
What are you discussing, replication of the GT as a racing machine or building some expensive full size model ?
If some of you want to externally model some picture in a book and you truly believe your car is a racer, then cool.
But, don't expect me to believe it is because it has forty bucks worth of light fittings stuck on the doors. (somebody paid £135 for a pair!)
I have a set of these lights but have not considered using them yet as my own personal priority is to bend the needle on the 200 mph speedo first.
If a little sarcasm offends some of you then I apologise with one reservation, you need to lighten up.
Incidentally, apart from my inherited sarcasm, I personally think I made some contribution in finding these things for "some of you" but if you want me to stay out of this kind of stuff in future, I will.