On a Hellcat? Although anything is possible with enough $$$, but I doubt it with all the electronic and computer integration. Best way of doing it is trading in M6 for an A8, may even break even there.
I mean I've done auto to manual conversions in the good old days, but back then all you basically needed besides the tranny (including clutch/pp, bellhousing etc) were the pedal assembly, shifter, driveshaft and crossmember.
![Wrenchin [wrenchin] [wrenchin]](/images/smilies/icon_smile_wrenchin.gif)