Yup, I know EXACTLY where you're coming from!
For a long while--going on a few years--I have hankered after a Proper, genuine OM.617.952 Turbo motor, But--like the 605 in the US-- it was Never officially imported here to the UK...
--I did hear of one a while back, but it was of dubious condition and Very expensive,--It may not have been a genuine .952 either!
So, after much thinking about all the hassles of importing one I gave up and then directed thought to a OM.606 Turbodiesel into my W123.
--At least most if not all the parts are available here for me to swap one in, and the engine itself is very readily available due to the W210 and its Rusting issues.

--I bought a complete W210 for a few hundred quid with a great OM.606.962, so now the search for all those odd items I need to fit it starts!
But I certainly know what you mean--Those daydreams are what keep us going!
