I wrote to the guy and I mentioned his too good to be true hashrate.
He tells me he can show me everything in his shop in 1 week.
But in 1 week I will be away on a business trip for 2 weeks

And then I know this community does not trust new hardware without good proof or review by one of the Legendary members here.
I'll tell him to create a thread here, maybe he can provide more information.