Cantis have a special mount that is attached to the frame, that is currently not there. You could take the frame to a builder(or general welder) and have them attach the mounts. There are strap on mounts out there that dont work to well.

But if I were you Id go for something more like diacompes if you are looking for a lot of style, or any old generic dual pivot brake if function and price are more important than form.