Daveyo mate - I don't normally argue these things, because it gives your nonsense credence, but....
your story has a cast of thousands - the people who knew Paul died, or knew "Faul," the plastic surgeons, the trainers, The Beatles and their circle and god knows who else (plus this still lurking evil mastermind, ready to send in professional hit teams to exterminate anyone who spills the beans. Nya hah hah.)
Putting aside the fact that we're talking about the member of a pop group here (not a President or a Pope), and a pop band that at the time was universally regarded as past it's peak and about to break up (singles and album sales down, declining concert numbers, Epstein forced to issue "they're not breaking up" press statements.) They were being outsold by Hermans Hermits and The Monkees for chrissakes. Why would anyone bother?
All that aside, the best evidence you can come up with is comparing photos seperated by nearly 50 years of age? Come on mate, you can't be that mad.
The other night the BBC had a documentary about whether Bin laden is still alive. Some folk have done what you've done with video images and say the differences prove he's dead.
Experts from both the CIA and MI5 and indepent security agencies all agreed that image matching is a very imprecise science and that the slightest thing - angle, light, perspective, age etc can create changes, and that they operate on a basis of degrees of certainty (ie a 95% match means it's most likely a match), and it is almost impossible to ever have an exact match. And these were images seperated by only 10 years
And I have a mirror. I'm 51 and can see my face changing. I'm becoming more thickset and my face is noticably sagging.
like Joost said, evidence my friend. Paranoid wishful thinking won't cut the mustard around here.