Frankazoid

6) which posts do fan relay 1 & 2 go to, respectively?

They control the fan relays if you choose to install some. You can use the EA's fan control system if you like instead of the ECU's fan controls. I leave them in so you have the choice. They are merely ground signals to close a relay - you can find the EA's fan relay and use #1 on it. EA's don't typically have a second electric fan so you would have to install one and a relay for the ECU to control.

7) 15a start/run needs to be spliced to ignition switch, correct?

No. It needs to be fed from a 15A fuse that is hot when the switch is in start and run. I sugest using a relay closed by the wire that used to feed 12v to the ignition coil on the EA. That can then feed a fuse block where you have the 15A fuse for the ECU, the 10A for the SSM port, and another 15A for your secondary fan, etc. Painless wireing products makes the fuse panels I use. They come with relay controls, etc