I have a Gavia TSX from around the same era. I raced the frame and had a "subtle" crash where I was ridden over, but the bicycle was pretty much undisturbed. Still, I decided to have the local framebuilder put it on his alignment table and check it out. Although I did not expect much needed to be done, he found the rear triangle off and straightened things out for me. It really didn't cost me that much and was well worth it. I am still riding that frame with Campy Ergo 8-speed. My favorite bicycle to ride.
As for the paint. Welcome to the Pinarello chipped paint/decals club.