I just bought a 92 Z28 that has many of the codes + more that you are looking for.
I have the G92(along with G80 and GU5) What is the G92 out of interests sake??
I have the Z03 - not sure what that is either.
It has R7G, not U so not sure again what that is.
L98 with auto - built L98 though with roller rollers/cam/headers and such
Mine is red/white with grey leather type interior. I think I have almost all options available.
I am going to install new upholstery in the next week which I have right now. Will sell in spring likely.
Heres a pic of my codes.