Keep one gold spacer under the stem. Matches the post clamp for a horizontal pinstripe of gold under the black and the one spacer will have a thinner look to match the grip clamp end ring.
Visual balance.
Spins look ace. Now tyres with a thin amberwall to match the gold ring and a bit of red, pinstripe or branding, to match the decals would finish off the visual feast a treat I'd say.