The old bluebird 1.8, year 1984 is Nissan model 910, this is an FR car. There has been many 910(s) converted to use RB20DET engine. The R32 half cut you are looking at to buy is from a Skyline GTS4, it's a 4WD car. To-date, no one has put in a 4WD into a 910, not that it cannot be done but it's just too much work involved, most would put this engine into the 910 and replace it with a 2WD gearbox.
Good Luck !.