100% chance you'll get fat. Don't go into an insane caloric surplus unless you're ok with being a fat ass. Also, I wouldn't ever copy George Leeman's work. There are very few humans who can handle the kind of work capacity he does, and truly benefit from it. He's an exception. He also takes a boat load of drugs. I'm guessing you don't.
Now that being said, I suppose if it's only for 10 weeks, it might be worth a try to see how YOU respond to the training. I just wouldn't eat as much as you're suggesting.
And as a side note, unless you are a competitive powerlifter who competes in singly ply or multiply divisions, the board press is completely, utterly, useless. There is no reason to board press, ever, outside of these specific circumstances.