WCCC doesnt have one and I see one from a place Kens Cougars for $7 and something on fleabay for $29. Anyone had any experience or other recommendations? 
I don’t know much about the 1,2,3 cars, but the factory shop manuals for the older cars include the schematics. If you don’t have the shop manual, it is probably the best overall investment you can make in fixing up your car.
Thanks XR7G428, Yea I ordered the ford car shop manual from WCCC and it doesnt include the full bumper to bumper schematic, and Don told me prior to my order it wasnt in there. I completely agree a must investment so thats why I was reaching out to the members as the 2 places I found possibilities are so far apart on price and if anyone had delt with them or had other options I hadnt found. I’m having temp and fule gauge issues and everything Ive read says check the sensor/sender and then check your wiring. I’d love to if I knew what wires were where lol. 
I’ve bought some from This guy: http://stores.ebay.com/classiccarwiring Very nice - heavy lamination, clear and (from what I have seen) accurate.
Thanks TheRktmn, unfortunately his site didnt have a 73 listed but I will contact him anyway, and yes they do look good
Not prefect or as nice as the 11x17 (or larger) factory ones but they might help
http://www.autozone.com/autozone/repairguides/WIRING-DIAGRAMS/WIRING-DIAGRAMS/_/P-0900c1528027a27b
Thanks J_ , I also emailed through fleabay and alternately just through regular email regarding 73 diagrams, no responce so Ill take that as a no.