Have you tried One Shot Tactical, Surplus Pont-Rouge or US Cavalry?
They all have multiple variations of different load bearing equipment, harnesses, suspenders, belts and the like in various colours. Haven't looked specifically for CB myself, but you may find something there.
A US Cav order may hit you for customs as they come out of Kentucky, but OST is in Ontario and Surplus Pont-Rouge in Quebec.
Cheers!
www.oneshottactical.com
www.uscav.com
www.surpluspontrouge.com