And all in ones usually always have the heat problem. Putting a 1070 or 1080 in such a tight space is sure to generate TONS of heat. That and that core i7 CPU. I really wonder how well it performance thermally.
It's $3000 at least, and I'm sure if you drop it... you may as well just sell whatever is salvageable and buy another. That's one expensive very expensive mistake.
iBuyPower shows a Chimera laptop with a 1070GPU, and similar or better specs than the AIO "Beast" save the 34" of screen size. That's the one compromise. The laptop is $1850, but is a 17.3 inch screen at 1080P. If I were a "LAN" goer, it'd probably be the better option. Easier to transport, and it might be hard to have enough real estate to set up a 34" display unit in the area as the rest of the people at the LAN party.