Sadly...
Motorsport! OEM Front* Emblem, Black Pearl, 03-09 350Z - The Z Store! Nissan-Datsun 240Z-260Z-280Z-280ZX-300ZX(Z31/Z32)-350Z-370Z Parts
Do a little reading on that page (maybe 60-90 seconds), a little other Googling, and I think it's clear that the FRONT emblems are interchangeable, but the REAR emblems are not. Damn...I guess plastidipping the whole emblem will have to be enough for me.