Push Button Shift Cable Conversion?

I know in the past companies like Hurst and B&M offered shifters for push button transmissions. I seen the ads in old magazines. They are out there. I don't think a cable by itself would work. The distance a shifter moves the cable would be too much for a push button trans. If you could reduce the distance by moving the cable closer to the pivot on a ratchet shifter it might work. You would need to measure the travel needed and modify accordingly. Now as to park??? Maybe you could find one of the old shifters. Good luck!