I think even if I did the research mentioned above, it would be a total waste of money because if those people don't believe in the testimonials, they won't believe in the research at all. They would say that I made it all up. So why waste money?
Testimonials are enough to convince people for now.
If you are an antichrist, you won't believe in the bible prophecy from the beginning. Which means, you won't believe that physical immortality will become possible.