I have had glimpses of this story and it is completely plausible, not least because it clearly explains the three wise men as no other known source can. Better than all that it gets him to where it was possible to become a fully adept spiritual master while young.
It is also plausible that Jesus was powerful enough to actually survive a short death with careful planning and confederates to work with. The actual plan to do so would have been given to him by the spirit side. Not anyone's ambition.
The point of course is all in history since. It has anchored western civilization and shed paganism globally. Now we approach the Confrontation which folds Islam into Christianity fully and simultaneously invites global resolution of spiritualism and faith..