Fixing up my Nishiki Prestige

Hello all,

I'm trying to figure out what to replace my gold (orangeish gold) Dia-Compe G brakes with as Dia-Compe doesn't make them any more, and they don't seem to make brakes in the same color either. What is the equivalent caliper brake set up?
I have tried finding some original G brake sets online but haven't had any luck....

Thanks