Car in question is a Volvo 242, yes, I do know of the D24T, however, I have not had any luck finding one.
The 1.9TDI is interesting, however, cheapest I can find one complete is $3200 (USD)
Current petrol motor is rated at: 101hp @ 5250, with 111ft lb @ 2500
Car weighs 2800+ pounds (empty)
Yes, I know the engine is 90° "wrong direction", but no big deal with a little bit of cutting and welding to adapt it to drive the rear wheels via a RWD transmission.
thanks