The CJ is modified, but generally period correct modifications.. (within reason)
the Land Rover is stock with the exception of some little dodads here and there...
carb, petronix, alternator, disk brakes, overdrive.. basically things to make it a better driver.. it can be returned to stock in a weekend.. the design worked for 67 years.. who am I to change it..
all depends on what your doing with the car and who you want to ever turn a wrench on it.
Car value is usually determined by being as close to factory condition...