Check Control Cables, Inc. in Santa Fe Springs, CA. http://www.controlcables.com/

Chances are very high that whoever is selling cables is getting them made at this place and $$$ marking them up. Send them either dimensions, two cable housings each with the correct end fittings you want to use, overall length measurement, etc. They are VERY helpful over the phone or internet and they catalog your application if you or a buddy ever needed another one. I've had them make stock looking throttle cables and E-brake cables for early B-body using Wilwood disc rear. I've been extremely satisfied with their work. Short turn around times but always good to have your 'end in view' and work the long-lead time parts of your project first. And, Redline Gage Works in Santa Clarita, CA are simply awesome at what they do. And, no. I don't work for Control Cables, Inc.