Well I recently went digging around in the cab of my truck and found the factory build sheet for the truck. Forty-year-old piece of paper is quite fragile. Anyhow, I may have wasted my time because I am sure someone has already done the leg work, but I replicated the build sheet. Let me know what you think. Still need to tweak it a little bit here-and-there, but it is pretty close. Constructive feedback welcome. Also, if anyone could shed some light on what the little codes or whatever represent, that would be cool. Thanks.