Looks like crate 6.1 hemi's are available from Mopar. info from a posting on Moparts. P5155067
Looks like it comes as a typical crate motor, but with the programmable computer (AEM) already setup to run, a cable operated throttle body, wiring harness, etc. List for $9999, your favorite dealer can probably do better. Doesn't sound too bad considering just the service replacement crate motors were going for $5000 and are supposedly not going to be available much longer. I think I'll stick with the 5.7 for the convertible as it will make all the HP I will need for that car and I can source the added parts needed cheaper.