The bike is cool but it is repainted and has completely mismatched components. The bike likely dates to the late 50's which would correspond with the derailleurs but that is about all. The brake calipers are likely newer than the bike. There are no brake levers (however Universal levers are not that difficult to come across at a reasonable price). The cranks are 10 years newer at least than the frame and derailleurs. The handlebars/stem in their own right are worth a good chunk of change since they have the highly sought after Bianchi engraving on the stem. I could readily see the handlebars alone go for a few hundred dollars, which would go a long way to cover a more appropriate handlebar/stem combo plus pay down the purchase price too. The paint is also redone. The saddle is somewhat newer, as is the seatpost. I would expect the seatpost to have the larger script and not the original small print of the late 50's early 60's. The rear derailleur also seems to be set up improperly (I don't believe the spring is tensioned and that at very least you would need reassemble properly and possibly there is a part missing).

All told, notwithstanding the "valuable" front derailleur, the handlebars/stem and the added large flange hubs, I don't see there being any financial logic to the purchase. Were the paint to still be original, or even a good repaint, then it would become more fathomable.