Not everybody has DPF issues (I haven't) or EGR issues (one was developing just before going on a 3k mile trip to Europe so I bought a NEW EGR valve and no have the old as a cleaned/fixed emergency spare). Do short journeys, start/stop journeys etc. the DPF becomes an issue. Same for EGR which is basically always open on commuting trips. Also pumping sooty and oily dust back into the inlet manifold is not IMHO a good engineering design.
You mention dual mass flywheel (DMF). Been there and paid heavily for it. Nothing wrong with the clutch plate but the cover pressure plate spring failed on my Croma (at less than 50k miles). Cost me a shed load of money in parts and labour. You can't change the clutch on a Croma without having to have the whole engine/suspension subframe removed. This involves steering rack separation, suspension separation, etc.
The DMFs on modern diesel engines are supposed to be "for life" fitments but in reality they are far from that. My DMF had quite a bit of play in it which is why it was replaced despite the low mileage.
WHAT I WANT is a nice *FIAT* 1.9, 16V, 150BHP diesel engine with no DPF, no EGR, no DMF and no GM parts. Is that too much to ask for?