I just picked up a late-80's Bianchi that is is pretty good condition but because it was stored in a garage, some parts have a bit of rust on them so I'm planning on replacing them before taking the bike out, the first on the list are the brakes.

Of course the pads are shot, they are the original, but I would like to replace the brakes alltogether. The originals are listed as "Polygon AF500 with QR and hooded levers", they look like standard side pulls. Could I simply replace them with any other side pull like Sora or Tiagra or other?

Any considerations I need to take into account?