from those tiny pics, this Corso looks to be a low-level bike-boom Italian, nothing out-of-the-ordinary except an Italian BB, a cottered crank, and plenty of heavy (and probably rusted) steel. If the Bianchi is a road bike and from about the same era (5 speed rear cluster) the wheels should swap. My guess is this one needs a full strip, clean, and repack...upon which you'll discover what parts are missing (brake calipers?) or don't work anymore (pedals?). if you like working on mechanical things, this would be a perfect starter, whether you SS, fixify or keep it a 10-speed. You need to hook up with a bike kitchen type place or a crusty old bikie with all the tools and the time and patience to teach you how...it's a hands-on sort of thing. But good old Sheldon Brown and the Park Tool website can teach you a lot, too, via the internets.