eddiexchoi

I'm new here and needing some help with identifying the year/model of this bike and help rebuilding it. I would like to thank you or anyone in advance for taking your time to read my posting and giving me help.
People that I ride often always talk about steel bike and that "steel is real" so I did some research and wanted to get me one also. Came across a cheap and old Bianchi which didn't have much damage to the frame so I bought it. I only been riding for about 2 years and had repair on few of the bikes that I've owned and have no clue what I need to do for this. I am looking to upgrade all the parts, including the drive train but not sure what would be the best. Lot of people told me to be original as much as possible but I rather have more gears. Any suggestions and/or recommendation would be greatly appreciated. I have some time to build this bike and have limited budget for now so it will be work in progress. Only reason I am building this bike is so that I can give my 2011 Cannondale CAAD 10 to my younger brother as a gift since he donated one of his kidney to our mother, which is priceless!