N3z1

I called three Mazda dealerships and provided my VIN number for the proper ECU to my RX8 and the only response I got was from one of the dealerships who told me my VIN ran according to ECU N3Z1. Well checking on an automatic 2004 Mazda RX8, I came across several N3Z1's:

N3Z1 18 881D
N3Z1 18 881E
N3Z1 18 881F
N3Z1 18 881G
N3Z1 18 881H
N3Z1 18 881J
N3Z1 18 881K

Would any of these ECU's work for my RX8? I'm dying to start her up. Any help would be of great value to me!!!