Not a Hemi but a 3.6 V6

The 3.6l uses the same pcm as the 2012 and newer Hemi. The 3.6l v6 Jeep also uses the same 5speed NAG1 5speed auto that is a common swap. Just swap the bellhousing.

Hardly no aftermarket suppport.
The OP already has a Hotwire harness to use as well as a Quicktime bellhousing for the TKO.

Diablosport and Hptuners both offer tuning software.

Edelbrock and 3 other vendors have bolt on superchargers and 3-4 others offer Turbo kits.

I did not know Hotwire builds a harness for it. I recently saw QuickTime has a bell housing. I've heard about the turbo/super kits for new challengers (neighbor was going to buy one but never did). I met a guy with a nice 300 that said he was buying a twin turbo kit that was good for 600hp. That would be fun in my little Valiant. This is sounding a little easier all the time. Just have to look at $$. I think it would be the perfect drivetrain for the purpose of my car.