I went to our local electrical shop here in Fairbanks, AK and asked about a wiring harness for my '46 2ton the gentleman looked at me confused, stopped looked back at me and said it’s a '46 there’s 5 %*@#! Wires just do it yourself and don't waste your money on those God $@#! Harnesses for a truck that old! Just make sure you have the right gauge and different color wires so you don’t @#$! It up and you’ll be good.
I don’t know if this helps but
I’m going with that idea mostly on the fact that my funds are dwindling fast for ’46 parts.