Hi Markus,Hi Stefan,
I could recommend you our local TÜV in Siegen (not too far away from Baden Württemberg).
We made my Mini street-legal last year, it was not a too big issue. EMC can be skipped for a converted car of that age, but a "non-understanding-engineer" may insist on it.
Funny enough, a colleage just told me last week that he is intending to convert a W123 into electric. I can forward him the link to your post. You both may then proceed parallel and have some synergy-effects.
thanks for the info, but Siegen is approx. 500 km away from my location. Getting the car there by trailer after the build wouldn't be an issue, but I assume that I will have to discuss more than once with the engineer during the build, given it's my first conversion and no experience.
So a TÜV location within 1 hrs drive would be good (anywhere south of Stuttgart)...
Maybe some others might have a tip...