Wiring Ka into 510- Wiring plans

My 510 harness was an absolute mess (i might post pics later) so I pulled it and am now trying to wire everything from scratch, including the ka24de-t. I hardly know anything about electrical so I started planning out the wiring in autocad (never used solidworks before) and Im wondering if someone could check to see if my plans make sense and give me some hints and tips.

Here is what ive drawn up so far

Im not sure, but shouldnt your ignition ‘on’ source be right after the battery? And before the starter?

ive got ‘power on/off’ before everything and after battery, and the ignition to turn starter over and surge ignition coil… makes sense right? do i need to wire an ignition signal into ecu?

Your alternator output has to go to the battery side of the main kill sw or it will not kill the car after it is running.

Yes there are battery alive feeds and ign feeds to the ecu.

yes that makes sense, thanks for the catch, i will fix that, so do you think i should just dive into the wiring myself or maybe ill pm you about some help?.. i live on 4th concession