Hirschmann 4140L - Acceptable for a 67S without antenna on the Kardex?

[Adore911]

Thanks to Joris and Nicklas, I learnt that, in case the factory installed an antenna on an early 67S model, it was the Hirschmann Auta 4000 C 71 L.

On the Kardex of the car, for which I am looking for an antenna, there is no radio nor antenna listed.
So, I assume an antenna was dealer installed. The car has had a radio and antenna before, but not anymore at the moment I bought it.
In line with that assumption, I am looking for an antenna a dealer or car radio service center would have used in September 1966.
I assume not always an Auta 4000 C 71 L was used in the latter case, but I can be wrong.

When looking into the Hirschmann catalogue (valid as from September 1st. 1973), I saw that on a BMW 2500/2800, next to the Auta 4000 C 301 L (the almost identical twin sister antenna of the Auta 4000 C 71 L at Porsche) with specific mounting parts, the Auta 4140L was used with universal parts (outside the factory).
See: https://vdhflipbooks.de/books/KAT/KA.../index.html#34

In line with that, I would assume that the Auta 4140L was also used on a Porsche "universally" outside the factory. However, I cannot find any evidence of that. On the contrary, the same catalogue doesn't even mention the Auta C 71 L for Porsche, only the Auta 4000 M 801. I have an Auta 4000 M 801, but I would rather use that one for a (late) model 1973 or later.

The Auta 4140L has the same head as the Auta 4000 C 71 L (Auta 4195 head) and the same keys (Auta 4088 keys). However, the 4140 L is a 140cm 4 mast antenna, while the 4000 C 71 L is only 110cm. The booklet mentions also the Swedisch language, so as far as language is concerned, it would match the car .

What are your opinions? Would you be happy with such antenna on such car in this context? All opinions are welcome.

I will add some pictures of the antenna.