1973 Other Fiat Models total rebirth of my Fiat 124 Coupe

Electrical problem
1973 Other Fiat Models

i have to rewire my fiat 124 coupe. Wiring the RPM indicator, fuel indicator, milage indicator, front light, wiper, back light, interior light, speaker, and other things that involve wiring in this car.I striped down the whole car. And now, whats left is the body chasis. And the engine. As for the rest of the thing, my fren help me out. But I cant find anybody to carry out the wiring. So, I decide to do it myself. As I have lack of experience working with wiring stuff, I need some guide to assist me to complete my dream car.