Stock rings are available from a number of sources, Motorsport Auto (MSA), Victoria British (VB), Coutesy Nissan in Dallas, and also Total Seal if you want gapless rings.
On my 1973, I have blue/red and blue/white for the power antennae, green/white and black for the side marker lamp, and white/black and white for a speaker. That is the factory location.
I am looking for a flywheel, rear engine plate and clutch line from the master to the flex hose for a 5 speed conversion. Do you have any of those parts?
I had the same problem. The 240z tach does not work well with electronic ignition. MSD makes an adapter, or you can, as I did, switch to 280z tach. I found one on Ebay for a reasonable amount. I opened up both tachs and switched the face plate and the housing so the mounts would work right. It works fine.