I have owned this Bianchi Advantage for about 30 years but it has only been used for about 35 hours. It has been stored in my garage unused for quite a long time. It has all the original parts since purchased and when I was using it performed fine with no mechanical issues whatsoever. I do not know much about bikes in general and the tires while having gone flat may or may not be salvageable.
Anyway, arrange to come see it to gather all the info that I don't know, sorry!