So the Infinity 708, mini harness, fuel pump / filter / regulator, and a shitload of switches, relays, wire, connectors, etc. have arrived. This weekend I start re-wiring the car from scratch, basically.
I have everything mapped out except the VANOS control and drive-by-wire pedal input. I know the Infinity supports both, just need to chat with AEM about the canonical way to do so. And also hopefully talk them into sending me the base start map for the E46 M3 plug-and-play unit, because god damn would that ever save me a bunch of time.
edit: current draft of the wiring:
