This is just advice and not intended to badmouth your plans but as someone who has studied Hemi vs LS swaps before deciding on the LS, I would tell you that there are many reasons why I decided on the LS route. Some of them are; LS swap is easier with the right kit (I used RPM Extreme Kit), the LS is lighter, the LS does not require physical modifications to the car other than new motor mounts, the LS get's better gas mileage typically, and the LS swap is cheaper to do by a substantial amount. I used a new LS3 430hp crate motor and almost new 6L80 transmission and the cost to do it myself with almost all new accessory drive was about $15K. I have seen many Hemi conversions and have yet to see one that turned out as well as mine. After doing the swap my Jeep has had zero problems associated with the conversion and it now has 40K miles on it. If you are open minded about the LS swap call Jon at RPM Extreme before buying a kit. His conversions are the best on the market in my opinion. Good luck to you though either way you go.