When I suggested running a wire from the alternator to the starter relay stud/ battery, that is a "quick way" to bypass a lot of trouble IE the "MAD BYPASS" in the referenced article.
Frankly my friend, "fixing" this is probably not the way to deal with it. I would SERIOUSLY be thinking of either rewiring the car with an aftermarket harness or looking for either used / good condition or "repop" factory harness.
Also, you have enough trouble going on here that you REALLY need to seek local help. What you need is the "virtual me" (or a guy like Maddox) that is local and can drop over there