Vendor for C6 calipers

[heynow14]

Hey guys -
I'm going to be pulling the trigger on a C6 set-up through Kore3. I am after non-painted/anodized C6 calipers - they are just natural cast silver with no logo, no paint, no nothing. Kore3 has only fronts at present with no indication that rears are coming. Does anyone know where else to get the rears? I can't seem to locate any other RELIABLE vendors who carry PBR calipers. Any help is appreciated.

Thx,
Nick