Wiring sizes for autosport harness

[2.0L_turbo]

Hey everyone I am in the middle of planning out wire sizes for a harness I will be building using autosport connectors. So far I have decided on all of the sensors and equipment I would like in the car and now I am working on a list of the wire size that I will be using. Mainly I am stuck on what size of wire to use the +14v going to the ECU, and the appropriate wire size for the coil packs which will be r35 gtr coils. And the last thing I wouldn't ming help with is how do you go about wiring the coils power wire correctly I tried looking in the help files but I could not find these coils. I am assuming that the wire would get ran to a relay controlled by key on power.

 

Here is the chart I have so far also coils 1-4 is the signal wire not power and ground.

https://drive.google.com/file/d/1PguwJ-YasTMU0ul-iZeCJ0Iu8eBLsti8/view?usp=drivesdk

[Electredge]

18awg to the ecu, and 20awg or 22awg for each of the coil pack 12v/GND, they draw very little amperage