Here is what I have so far. I did find a corner cutter and it works great.
Emission decals as follows:
1971 there are two, one I guess for early and one for late. First one is silver (early) and second one Gold (late).
Third one for 1972 Gold.
Forth one is for Inertia and Fifth on is Emissions for 1974.
Sixth on is Emission and Seventh is Inertia, both in gold for 1976
Eight is Emission for non-catalyst and ninth is catalyst (California) for 1978.
Ninth one is for Paint, I have it both ways for early and this for later Z's.
I also have the Coolant (correct) and Hot (fixed) for Rad.
I do not have or have no photos of Emission decals for 1969, 1970, 1973, 1975 and 1977. I have a picture of 69,70 emission decal but no dimensions. If any one has them let me know.
I also need the Inertia for 69,70,71,72,73,75, 77 and 78. I need pictures and dimensions is any one has them.
Notice: that the 1978 Emission decal has a Datsun logo and all the others have a Nissan logo. Also on the 1978 Catalyst Emission decal on the bottom right corner it says "L24" not "L28" like the non-Catalyst. I know this is right because I have a picture of it.
Mototman7 I will need the year you want decals, let me know. I used you dimensions for the 1972 and they worked.
Any help with the decals is appreciated, thanks.