To FatFender Friends:
I found this online and ordered one. It is 11 by 17 laminated and all wiring is shown in the actual stock wiring insulation colors. I think it will be helpful when I aam troubleshooting wiring issues, and especially helpful if I need to be re-wiring anything.
Amazon.com: Classic Car Wiring: Automotive
I bought mine from amazon, but you can also order it online from Classiccarwiring.com.
It's $17 but worth it for me.