It looks like I can use a 1-Post Wire Rope Clip Cable Clamp instead. Then I don't need a swaging tool.

http://www.amazon.com/Galvanized-Steel-Simplex-1-Post-Cable/dp/B00HQOQFC0

And now I'm thinking maybe I can use a kevlar braided cord instead of a metal braided rope. For example, here is a 1.7mm diameter one: http://www.amazon.com/gp/product/B00746VAU2