misc little broken things, looking for part numbers.

[chmercer]

i was just looking around my engine bay and noticed that i am missing a few things and was wondering if they mattered enough to fix.

1 of the screws on my valve cover that holds the spark plug wire bracket on is not there. anyone know the part number or anything?

also there is a screw broken off in my manifold and i dont know why it is there? its on the part where the manifold merges, above the o2 sensor.

on the head, there is a bolt broken off that the exhaust manifold would bolt on to on the 1st runner. how would i fix this?

lastly, i need some new exhaust gaskets and i know that the one between the downpipe and kat is mls stock so i would just get that one from the dealer or somthing, but does anyone know where to get an mls gasket for between the manifold and downpipe?

[Nismo_Freak]

Best bet would be to call Nissan themselves... they can look up the bolts easily.