DIY was going to be my suggestion to. Or commissioning someone to make one for you to your specification.
Like the Canare, Mogami 2893 is also available in wide range of colors (I also think it's easier to work with). You can also always sheath a custom cable in a whole rainbow of available paracord sheaths to make it in any color you want.
Pre-made, your options are going to be a bit limited though.