I used the Speedway Motors house brand 22 circuit kit when I rewired the mess that was my 51's electrical system. Been two years, no complaints. Being a universal kit though, it wasn't a simple plug and play. I ended up getting new contacts for all my light sockets so I could replaced them and eliminate the spliced on to the original cloth covered wires the PO had scabbed on to. Some wires were too short, primarily the brake light switch since it's a brake pressure switch located near the rear axle. Price has gone up about $50 since I bought it. I converted to a later Moapr externally regulated 12v charging system, so I had to hand built part of that setup.

https://www.speedwaymotors.com/22-Circuit-Universal-Automotive-Aftermarket-Wiring-Harness-Kit,229874.html