There also is the Diesel YD engines with the 2.5 max
figures of 190hp & peak 332lbs of torque @ 2000rpm!
Youd probably need a 2.75 to 1 diff ratio :)
The 2.2 YD version would be fine and shorter height
shorter stroke with choice of 5 or 7 speed autos

Never heard of a diesel 1200 coupe but that kind
of engine with super highway diff would probably
get you 60-70 miles per gallon