If that taillight is off the 'donor' car, its was a 200sx SE... with the V6. The diff should be a 3.9 R200 and is prob the only thing worth anything in the pile, and that isnt saying much.
Its a little odd, since the taillight is a 200sx unit, and the wheel is 4 lug, the V6 200sx's were 5 lug.....
EDIT: I might be wrong, that taillight might be off something else, and the front end, I dont think is nissan....