Very nice car. If it was a 440 or 426 hemi, of course take it to original. No brainer there. I, like others have stated...
1) You will enjoy driving a PT car much more than original
2) Resale value for PT is higher than most base model cars restored back to orig.
3) Going PT on a challenger would be awesome and really show up the new challengers, especially if you used the latest drivetrain