Aren't expensive? My local Advanced Autoparts store sells the adjustable Zoom brand cables with shitty adjustable quadrant for $100. Maybe I'm just poor lol.
Your cable won't last any determined amount of miles though. They'll either stretch out so much that they can't be adjusted anymore (adjustable cables like the Zoom in my car), or they'll simply snap. Could last a million miles, or it could sh!t on you in 5 minutes