Couple of ideas to circumvent the re-anodising palaver if you want to keep the gold/black look:
The Dia-Compe BRS101 dual-pivot caliper is available with gold anodising if you want a modern brake with a retro look. Dunno if anyone makes matching levers though.
For modern-era gold cranks try Pake, available in 165 or 170mm for track machines/fixies but could be modified to a road double; black chainrings to match (colour as per Record Sprint original spec IIRC) are easier to come by however.
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