When I rewired my 51 Plymouth I used one of Speedway's house brand harnesses, key is to determine how many circuits you need. This is th eone I used
https://www.speedwaymotors.com/22-Circuit-Universal-Automotive-Aftermarket-Wiring-Harness-Kit,229874.html
I have an EZ wiring harness in my 52 Dodge PU. Previous owner installed it. Presently I’m wiring LED lights and so far it’s been pretty easy. My harness is is a 12 circuit.
I would suggest going through another vendor besides Speedway. Their customer service sucks. I spend over an hour and a half yesterday just to get one question answered. Turns out the instructions for the wiring on my truck were updated.