I am not a “HJ believer”. I am inclined to believe that Jesus lived in Galilee in the beginning of the First Century and was crucified by the Romans. Don’t you catch the difference?
Uh, there is NO difference.
That is as much a HJ as the idea that in the time of Pontius Pilate some crazy ran into the Temple trashing the place and screaming "I am Jesus, King of the Jews" before some guard ran him through with a sword.
The idea that Paul's teachings ala John Frum inspired others to take up the name "Jesus" and preach their spin on Paul's visions with one of them getting crucified by the Romans by his troubles would fit your definition.
These and similar idea hinges on the belief that the gospel account can be demonstrated to be built around one 1st century Galilee man rather then describing a composite person (Robin Hood) or has not been time shifted for social-political reasons (Robin Hood or King Arthur)
My argument is done. I am tired to repeat it again and again. But I am going to schematize it for politeness:
1. Paul affirms that his gospel comes from the Bible and revelation.
And Charles Manson got his "Gospel" from the Bible and a Beetles album. Your point?
2. Paul gives some details of the appearances of Jesus (when and who).
Only if you consider "details" as being on par with a cold reading by a fortune teller or what we see with John Frum.
3. He explicitly excludes the Bible as the source of these details.
4. It is very unlikely these details come from revelation (ecstatic?).
5. It is very likely that the appearances come from another source.
Revelation (ie visions) also involve imagination. One only have to read about all the aliens outside of the "normal" Greys that people have been "abducted" by to see that.

On a side note if there was
anything to those reports Earth must be the favorite stopping point for every space faring sexual pervert in the Milky Way.
6. The appearances subject was a weapon of power in the Early Christianity.
7. Paul had an important reason to highlight the direct sources of his gospel and dismissed the actual human sources. That is to say, he pretended the rank of "apostle".
8. First conclusion: Paul had more natural sources that those he would like to admit.
9. The appearances and the crucifixion matters were connected by force.
10. Second conclusion: Paul got some accounts about the crucifixion from human telling.
Except Paul talks about vague things like "The Rulers of This Age" (1 Corinthians 2:8) But what
is this age? Age of Total Nutjob Emperors which would be after 37 CE? Age of the Roman Empire which would go back to Julius Caesar nearly 100 years before? Age of Roman Government of Galilee which would go back over 100 years? Which Age is Paul talking about here? Third Base (if you are an Abbott and Costello fan you should get the joke

If not you need to get out more.)
Its like talking about the Industrial, Modern, and Information Ages; they don't have real fast dates as to when they begin or when they end. Even the Middle Ages which uses 476 CE (Fall of Western Roman Empire) as a convenient start date doesn't have a set end date; you have the often used conquest of Constantinople (1453) competing with Battle of Bosworth Field (1485), Christopher Columbus's first voyage to the Americas (1492), Protestant Reformation (1517), and even the Black Death (1348–50). Then you have the Early, High, and Late Middle Ages with start and end dates that are totally arbitrary.
Paul himself is vague on actual details...just like we see regarding John Frum. It is only with writings passed off as Paul's that we see anything actually resembling real details.