Throttle and Kickdown Cable Selection

Let me throw this one out there. When Chrysler was building these cars, all sorts of cables were available and being used. WHYWHYWHY did they go through the trouble and expense of engineering very specific mechanical kickdown setups?
If a cable was a viable option for this particular application, Chrysler would have been able to use one universal setup that would have worked with all of their engine/trans/body combinations..saving millions!
The Lokar stuff is a BAND AID fix. It may get the job done for a while, but I would not count on it remaining accurate for any amount of time
I'd rather manufacture something to get my original linkage/cable to hook up, but that may take me way to long and I might lose my mind.