I have the T95.
Quieter than the old BMC but still not that quiet.
Very reliable
Easy to get parts but can't find my book with numbers. Certain things have been expensive like starter and alternator.
Dip stick is a nightmare to get to.
We have one on our Moody. 20 years old and is still fine (gulp). No appreciable oil use over a 100hr season. Revs to 2950 with a clean hull and punches us along at 6.5 knts.
It's not the quietest engine in the world but what diesels are?
Parts from ASAP or Thornycroft. Filters from local autoparts shop.