Surely it must be easier than having to trace every single wire from A to B
That might be exactly what you have to do but look at it as you say as a challange.
I don't know why but many people become jibbering wrecks when it comes to the wiring (not saying you are of course
) but if you approach it logically and with patience and make notes and label things then it will go like a dream and give you immense satisfaction.
What you are doing now is basically making your car 'come alive' and that is a great feeling. Getting the engine going, seeing the first light turn on etc etc is a huge milestone in a kit car build.
Good luck with it, here's to your first spark
John
Madabout-kitcars.com