Making new wiring harness from scratch, need help

[Uzelac]

Not that job if you dont go too far.
My car uses geniune wiring with all extra pieces deleted.
There are really long wires going from that junction on firewall (not fuse box, not sure about name) which should be wired to custom switches.
You can use connector on keylock, just change wires going from that and route them to kill switch (i presume everybody use them) and starter switch.

I relocated the battery by adding new thick wire going to starter and from there to engine bay fuse box.

Everything works like a charm.