You can use any shifter you like, people have been doing it for a long time. Just remove all of the stock linkage from the column shift (might want to keep it all together). After market shifters are going to use a cable, you will have to punch a hole into the floor to run that down to the transmission.
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)