I made this modification too before the Moroccan tour, and we are very happy with the improvement. As many said here before, the vibrations are dramatically reduced, which in a Morgan means excellent news!
Now we won't have so many nuts and rivets coming loose and all the electronics will suffer much less.
Warning for the Euro4 folks out there: yes you must change the location of your regulator, but for extraterrestrial reasons we didn't manage to understand yet, you must keep the original Morgan regulator, as the Harley Davidson combined with the new mounting kit, implies losing the rev counter. Yes, I know it sounds weird. But its an electronic mistery we haven't solved yet.
Euro 4 3-wheelers are equipped with a regulator on the engine, as is the HARLEY rectifier. This blocks the current flowing to the tachometer.
The stock rectifier, combined with the engine regulator, is much less prone to failure.