You are most likely going to be spending thousands of dollars on your restoration over the few years and yet you are saying that you cannot afford the $50 or so for your PHS documents?
This is probably one of the best $50 purchases you will make for your car. They will tell you everything and stop all of your attempts to "figure out" what's original and what has been messed with by previous owners.
For example, my car came with several aftermarket add-ons that I now know for sure where not original such as underdash gauges, a transmission cooler, aftermarket carb and air cleaner.
2012 Mustang Boss 302 #1918, Competition Orange. FGF replacement 2006 Mustang V6 Pony, Vista Blue. Factory ordered. 2019 BMW X3 (Titled to the wife, but I'm always driving it for her. So I'm claiming it) Old projects, gone but not forgotten: 1967 FB 400, original CA car. After 22 years of work, trashed by the guy who was supposed to paint it. I had to sell it. 1980 Turbo Trans Am 1970 Mustang fastback, 351C 4Bbl, auto 1988 Mustang GT, 5 speed 1983 F-150 4x4, built 302 1994 Chevy K2500 HD 4x4, 454 TBI