They're not hard to repair rather than replace, it's basically just a long ribbon wound up (like a clock-spring.).
Usually just a broken wire or connector on either end, it's not magic... at-least certainly not 3 grand or even ~$500 worth.
You can often get just replacement cables with connectors to put in your existing assembly, never looked for ones for the WH, but I'm sure some clever Chinese dudes have covered it.
This is a pretty good write-up showing how they work;
http://www.pirate4x4.com/forum/toyot...ring-tech.html
And there's some good photos of it on the WH (actually a WK, but whatevs.);
http://www.jeepforum.com/forum/f67/o...1/index42.html