Looking for a 6.4 Hemi

My how wrong you are ! If you know what you are doing you can use EVERYTHING .. even the rear tone wheels / speed sensors .... The car will be drive by wire, still use the factory skim keys and everything .. Fuel pumps will not be used ...

You are correct anything can be done with enough time and money.
The reason I stated that is because it is not a simple swap, Most customers want a true plug and play setup that anybody with some mechanical experience can do.