I purchased my cloth wiring Harness from:
Vintage Wiring of Maine Here is the info and what I paid.
"The 1953 Chevy wiring harness is $ 500.00 plus shipping. The cost to add turn signals is $ 160.00. The truck harness includes headlight bucket harnesses, parking light wires, gen/ volt reg wires, all dash wiring, fuel tank wire, wires to the single brake/ tail light, etc.. The harness is built using original style cloth-covered wire of the correct colors and gauges. All of the wires are numbered and there is an installation booklet included. The turn signal add-on includes the lever assembly for the steering column, flasher, in-line fuse, wiring for the second brake/ taillight, etc."
I am pleased with the product, and Joe Hall the owner was very helpful.
Good Luck!
Mike