Hi Vagelis,
I have a pair of Nismo ARBs coming off a Zed in a couple of weeks time.
I also have a Nismo S Tune Suspension kit coming off the same car.
I would prefer to sell the ARBs and Suspension as one unit but would consider selling the ARBs on there own but only as a pair.
I can also help you with a new LSD but I do not have a preowned one in at the moment.
Drop me a pm if I can help you further.
Cheers,
Alex.