I almost want to allow him to do it at full power because i warned him about how megacorps would react and he was dismissive that they could find him. I almost feel honor bound to have yamatetsu or aztecnology hunt him down and dissect his ass. Didn't even take the mana factor into account
Honestly
just don't do this. The way to fix a problem player/character isn't to give them more attention. That just is unfair to them, and more importantly unfair to the other people showing up to the game. Having the guy who's already the cheesemonger start play with a more powerful character who's also a special snow flake is a good way to loose players in very short order. Plus it starts things in an antagonistic mode right from jump. Bite the bullett, tell him no, and press on with life. Let everyone start new fresh characters and do whatever it is yoru going to do.
That doesn't even begin to get into all the impossibilities difficulties with time travel, early drakes, and other issues.
Long story short: If you do this you will regret later, it won't enhance anyone's fun except for about a session and potentially yours for a seassion and I guarantee you would come to regret the decision just like GM before you, including myself. Who has allowed something at chargen they knew was a Bad Idea(TM).