Do a search a search on the "Dirty Doughnuts". You will find that Woody tried what you suggest (to run the front signal to the rear inputs, didn't work). BUT! He has found a way to get sideways by disconnecting the Yaw sensor. Unfortunately it's location is not that easy to get to. It's located just aft of the gear shifter assembly on the transmission tunnel. To get to it, you have to unscrew two screws in the rear of the center console, in the storage area under the lining, pop off the plate from the shifter assembly, pull the grip off the parking brake, and then unscrew two more screws at the front of the center console section. Unhook the console and lift it far enough to unhook the electrical connector from the small box aft of your shifter assembly.

Personally, if you are going to do this a lot, I would suggest a single pole toggle switch that cuts the power to this box. That should be pretty much the same as it being unplugged. (no power).

I would recommend hunting down those threads. I suspect that if you have the yaw sensor unplugged, you could easily get sideways.

As to the ESP always being there... I'm pretty sure on the SRT6s you can pull the ESP fuses (17 & 18 under the hood on the passenger side, I'm pretty sure) and you will still have power to red line.

Anyway... hope that helps some.