If you are interested, I just picked up a 2nd Nissan 33sd turbo diesel inline 6 from a 1980 Scout.  It is complete but the last owner bought it as the prior owner was starting to do a rebuild.  It was only available in 1980 and is factory rated at 101hp and 175ft/lb of torque.  It would come with the motor mounts attached to the engine.  I also have the bell housing, adaptor and t19 4 speed transmission.  No transfer case.  

These are pretty rare and sought out.  The adaptor between the engine and bell housing is over $600 used from Anything Scout.  I am very reasonable about pricing because I don't know the condition of the engine or transmission but they appear to be complete.  Send me an email if interested.