My 300e continues to confound me. Like you I am considering an American drivetrain in mine but haven't had the time to do it yet. I would like to remove the name "Bosch" from my car since the components are unreliable and cost ten times what they're worth. I'm hoping that one day I can install a Ford drivetrain and fuel management system and have a great looking reliable car.
I'm not a MOPAR fan but if you can pull it off, then you have MY admiration!!

PS. As far as saving our cars from the 'crusher', I may be doing my car a disservice!! I think it would make a great toaster!!