I think a PUA isnt the best way to go. If its stories your after the best people to find are Magicians... they talk crap about how osmosis can melt playing cards or how you can tear one and it comes back restored due to the ozone and all that stuff.
I used to work close-up magic and it requires a lot of "storytelling" to try and get people believing what your doing is science and not some kind slight of hand you spend 4days practicing
Try MagicBunny forums they have tons of people working out of London... If you are after a PUA then there might be a few on here but it's personal preference if they will let you record 2 hours of material for fear of being copied or whatever.
Good luck with whatever you choose
