oh and one more thing, ask your nissan guy to check the dead stock list, these are parts that dealers have had in stock for over 12 months.
Even though the numbers come up as "no longer available"there is still a chance the warehouse in japan may have some stock so ask him to fax your request.
while your at the wheel place drop into Highway Honda and ask for Jamie, he was working for me when I still did honda parts he is very helpfull