You are working very hard at this and it is certainly better than what I could manage. Unfortunately, I have clocked so many laps on other versions of this circuit, I have a real hard time driving it.
I certainly do not expect laser scan precision and precise camber on every turn, but if I get even a little bit distracted I end up stuffing the car into the wall. I have to keep repeating myself that it is essentially a different track from the one I am used to.
I understand you are using Google Earth (or maps) for the roads. Evidently they must have been modified in the intervening years. Not your fault. But I absolutely love to drive the vintage tracks for what they were. I love to load a period car and race against other cars from the era. It takes me back to those days, which I still remember well because I was there. I watched the races on Italian TV when I was a kid.
Please don't take this personally, your work is impressive. Maybe as you get better you may want to consider releasing a "vintage" version and you could use the rFactor or PCARS tracks as an inspiration. That would make me (and a lot of other people, I'll bet) very happy.