igntion harness, you still have that right lol.. white is constant 12v. Black with white stripe will be your 12v while in run mode and cranking. this will be your trigger to all your ms relays (except fuel pump since its neagtivly triggerd from the ms)

The starter wire is black yello (i belive) this gets ran and spliced into the starter molex connector. should be a 1 wire connector.

the constant 12v for the relays can come from the battery.. where are you mountng ur relays?