If the Motor is from a MK1 It will drop in, if from another just switch your mounts
Keep the original coolant flange from the old motor ( sensors)if different
Install new belts and hoses , water pump and belt to be safe...
radiator : you can go to the a/c size of 575 mm, i
Or go to the 675 mm 1991 1.6TD model
I have the list of parts:
two hoses
radiator
two brackets
You can use your MK1 fan support ( with either one ) 575 or 675
GB